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Finding the Fourth Proportional to 38,502.72, 57,757.76 and 10,800.64

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Solution

The fourth proportional to 38,502.72, 57,757.76 and 10,800.64 is: 16,201.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,502.72 : 57,757.76 = 10,800.64 : x
  2. Step 2: Convert to fraction form
    38,502.72/57,757.76 = 10,800.64/x
  3. Step 3: Cross multiply
    38,502.72x = 57,757.76 × 10,800.64
  4. Step 4: Simplify right side
    38,502.72x = 623,820,772.97
  5. Step 5: Solve for x
    x = 623,820,772.97/38,502.72
  6. Step 6: Final answer
    x = 16,201.99

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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.