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Finding the Fourth Proportional to 66,312.62, 99,469.97 and 36,917.29

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Solution

The fourth proportional to 66,312.62, 99,469.97 and 36,917.29 is: 55,376.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,312.62 : 99,469.97 = 36,917.29 : x
  2. Step 2: Convert to fraction form
    66,312.62/99,469.97 = 36,917.29/x
  3. Step 3: Cross multiply
    66,312.62x = 99,469.97 × 36,917.29
  4. Step 4: Simplify right side
    66,312.62x = 3,672,161,728.78
  5. Step 5: Solve for x
    x = 3,672,161,728.78/66,312.62
  6. Step 6: Final answer
    x = 55,376.51

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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.