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Finding the Fourth Proportional to 66,447.73, 99,698.14 and 27,007.93

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Solution

The fourth proportional to 66,447.73, 99,698.14 and 27,007.93 is: 40,522.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,447.73 : 99,698.14 = 27,007.93 : x
  2. Step 2: Convert to fraction form
    66,447.73/99,698.14 = 27,007.93/x
  3. Step 3: Cross multiply
    66,447.73x = 99,698.14 × 27,007.93
  4. Step 4: Simplify right side
    66,447.73x = 2,692,640,251.21
  5. Step 5: Solve for x
    x = 2,692,640,251.21/66,447.73
  6. Step 6: Final answer
    x = 40,522.68

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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.