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Finding the Fourth Proportional to 60,375.07, 90,562.65 and 20,932.21

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Solution

The fourth proportional to 60,375.07, 90,562.65 and 20,932.21 is: 31,398.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,375.07 : 90,562.65 = 20,932.21 : x
  2. Step 2: Convert to fraction form
    60,375.07/90,562.65 = 20,932.21/x
  3. Step 3: Cross multiply
    60,375.07x = 90,562.65 × 20,932.21
  4. Step 4: Simplify right side
    60,375.07x = 1,895,676,407.96
  5. Step 5: Solve for x
    x = 1,895,676,407.96/60,375.07
  6. Step 6: Final answer
    x = 31,398.33

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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.