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Finding the Fourth Proportional to 60,644.20, 90,966.30 and 54,301.90

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Solution

The fourth proportional to 60,644.20, 90,966.30 and 54,301.90 is: 81,452.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,644.20 : 90,966.30 = 54,301.90 : x
  2. Step 2: Convert to fraction form
    60,644.20/90,966.30 = 54,301.90/x
  3. Step 3: Cross multiply
    60,644.20x = 90,966.30 × 54,301.90
  4. Step 4: Simplify right side
    60,644.20x = 4,939,642,925.97
  5. Step 5: Solve for x
    x = 4,939,642,925.97/60,644.20
  6. Step 6: Final answer
    x = 81,452.85

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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.