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Finding the Fourth Proportional to 66,586.56, 99,766.14 and 36,625.86

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Solution

The fourth proportional to 66,586.56, 99,766.14 and 36,625.86 is: 54,876.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,586.56 : 99,766.14 = 36,625.86 : x
  2. Step 2: Convert to fraction form
    66,586.56/99,766.14 = 36,625.86/x
  3. Step 3: Cross multiply
    66,586.56x = 99,766.14 × 36,625.86
  4. Step 4: Simplify right side
    66,586.56x = 3,654,020,676.38
  5. Step 5: Solve for x
    x = 3,654,020,676.38/66,586.56
  6. Step 6: Final answer
    x = 54,876.25

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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.