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Finding the Fourth Proportional to 66,344.70, 99,517.05 and 65,251.20

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Solution

The fourth proportional to 66,344.70, 99,517.05 and 65,251.20 is: 97,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,344.70 : 99,517.05 = 65,251.20 : x
  2. Step 2: Convert to fraction form
    66,344.70/99,517.05 = 65,251.20/x
  3. Step 3: Cross multiply
    66,344.70x = 99,517.05 × 65,251.20
  4. Step 4: Simplify right side
    66,344.70x = 6,493,606,932.96
  5. Step 5: Solve for x
    x = 6,493,606,932.96/66,344.70
  6. Step 6: Final answer
    x = 97,876.80

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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.