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Finding the Fourth Proportional to 60,135.88, 90,201.28 and 15,761.68

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Solution

The fourth proportional to 60,135.88, 90,201.28 and 15,761.68 is: 23,641.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,135.88 : 90,201.28 = 15,761.68 : x
  2. Step 2: Convert to fraction form
    60,135.88/90,201.28 = 15,761.68/x
  3. Step 3: Cross multiply
    60,135.88x = 90,201.28 × 15,761.68
  4. Step 4: Simplify right side
    60,135.88x = 1,421,723,710.95
  5. Step 5: Solve for x
    x = 1,421,723,710.95/60,135.88
  6. Step 6: Final answer
    x = 23,641.85

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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.