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Finding the Fourth Proportional to 60,593.32, 90,931.49 and 21,150.43

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Solution

The fourth proportional to 60,593.32, 90,931.49 and 21,150.43 is: 31,740.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,593.32 : 90,931.49 = 21,150.43 : x
  2. Step 2: Convert to fraction form
    60,593.32/90,931.49 = 21,150.43/x
  3. Step 3: Cross multiply
    60,593.32x = 90,931.49 × 21,150.43
  4. Step 4: Simplify right side
    60,593.32x = 1,923,240,490.73
  5. Step 5: Solve for x
    x = 1,923,240,490.73/60,593.32
  6. Step 6: Final answer
    x = 31,740.14

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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.