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Finding the Fourth Proportional to 18,846.84, 25,975.98 and 14,122.92

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Solution

The fourth proportional to 18,846.84, 25,975.98 and 14,122.92 is: 19,465.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,846.84 : 25,975.98 = 14,122.92 : x
  2. Step 2: Convert to fraction form
    18,846.84/25,975.98 = 14,122.92/x
  3. Step 3: Cross multiply
    18,846.84x = 25,975.98 × 14,122.92
  4. Step 4: Simplify right side
    18,846.84x = 366,856,687.46
  5. Step 5: Solve for x
    x = 366,856,687.46/18,846.84
  6. Step 6: Final answer
    x = 19,465.16

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Double scale
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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.