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Finding the Fourth Proportional to 66,863.59, 100,420.30 and 58,861.19

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Solution

The fourth proportional to 66,863.59, 100,420.30 and 58,861.19 is: 88,401.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,863.59 : 100,420.30 = 58,861.19 : x
  2. Step 2: Convert to fraction form
    66,863.59/100,420.30 = 58,861.19/x
  3. Step 3: Cross multiply
    66,863.59x = 100,420.30 × 58,861.19
  4. Step 4: Simplify right side
    66,863.59x = 5,910,858,358.16
  5. Step 5: Solve for x
    x = 5,910,858,358.16/66,863.59
  6. Step 6: Final answer
    x = 88,401.76

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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.