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Finding the Fourth Proportional to 16,812.30, 25,218.45 and 8,064.30

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Solution

The fourth proportional to 16,812.30, 25,218.45 and 8,064.30 is: 12,096.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,812.30 : 25,218.45 = 8,064.30 : x
  2. Step 2: Convert to fraction form
    16,812.30/25,218.45 = 8,064.30/x
  3. Step 3: Cross multiply
    16,812.30x = 25,218.45 × 8,064.30
  4. Step 4: Simplify right side
    16,812.30x = 203,369,146.34
  5. Step 5: Solve for x
    x = 203,369,146.34/16,812.30
  6. Step 6: Final answer
    x = 12,096.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.