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Finding the Fourth Proportional to 66,502.62, 99,716.67 and 27,013.50

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Solution

The fourth proportional to 66,502.62, 99,716.67 and 27,013.50 is: 40,505.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,502.62 : 99,716.67 = 27,013.50 : x
  2. Step 2: Convert to fraction form
    66,502.62/99,716.67 = 27,013.50/x
  3. Step 3: Cross multiply
    66,502.62x = 99,716.67 × 27,013.50
  4. Step 4: Simplify right side
    66,502.62x = 2,693,696,265.05
  5. Step 5: Solve for x
    x = 2,693,696,265.05/66,502.62
  6. Step 6: Final answer
    x = 40,505.11

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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.