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Finding the Fourth Proportional to 66,047.70, 98,902.40 and 36,432.62

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Solution

The fourth proportional to 66,047.70, 98,902.40 and 36,432.62 is: 54,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,047.70 : 98,902.40 = 36,432.62 : x
  2. Step 2: Convert to fraction form
    66,047.70/98,902.40 = 36,432.62/x
  3. Step 3: Cross multiply
    66,047.70x = 98,902.40 × 36,432.62
  4. Step 4: Simplify right side
    66,047.70x = 3,603,272,879.61
  5. Step 5: Solve for x
    x = 3,603,272,879.61/66,047.70
  6. Step 6: Final answer
    x = 54,555.61

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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.