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Finding the Fourth Proportional to 66,515.92, 99,773.60 and 27,063.68

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Solution

The fourth proportional to 66,515.92, 99,773.60 and 27,063.68 is: 40,595.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,515.92 : 99,773.60 = 27,063.68 : x
  2. Step 2: Convert to fraction form
    66,515.92/99,773.60 = 27,063.68/x
  3. Step 3: Cross multiply
    66,515.92x = 99,773.60 × 27,063.68
  4. Step 4: Simplify right side
    66,515.92x = 2,700,240,782.85
  5. Step 5: Solve for x
    x = 2,700,240,782.85/66,515.92
  6. Step 6: Final answer
    x = 40,595.41

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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.