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Finding the Fourth Proportional to 60,431.78, 83,407.79 and 38,614.10

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Solution

The fourth proportional to 60,431.78, 83,407.79 and 38,614.10 is: 53,295.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,431.78 : 83,407.79 = 38,614.10 : x
  2. Step 2: Convert to fraction form
    60,431.78/83,407.79 = 38,614.10/x
  3. Step 3: Cross multiply
    60,431.78x = 83,407.79 × 38,614.10
  4. Step 4: Simplify right side
    60,431.78x = 3,220,716,133.73
  5. Step 5: Solve for x
    x = 3,220,716,133.73/60,431.78
  6. Step 6: Final answer
    x = 53,295.08

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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.