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Finding the Fourth Proportional to 18,462.75, 25,474.45 and 10,903.92

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Solution

The fourth proportional to 18,462.75, 25,474.45 and 10,903.92 is: 15,044.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,462.75 : 25,474.45 = 10,903.92 : x
  2. Step 2: Convert to fraction form
    18,462.75/25,474.45 = 10,903.92/x
  3. Step 3: Cross multiply
    18,462.75x = 25,474.45 × 10,903.92
  4. Step 4: Simplify right side
    18,462.75x = 277,771,364.84
  5. Step 5: Solve for x
    x = 277,771,364.84/18,462.75
  6. Step 6: Final answer
    x = 15,044.96

Related Problems

Find fourth proportional to 9,231.38, 12,737.23 and 5,451.96
Half scale
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Double scale
Find fourth proportional to 18,463.75, 25,475.83 and 10,904.92
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.