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Finding the Fourth Proportional to 66,489.93, 99,648.72 and 27,001.17

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Solution

The fourth proportional to 66,489.93, 99,648.72 and 27,001.17 is: 40,466.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,489.93 : 99,648.72 = 27,001.17 : x
  2. Step 2: Convert to fraction form
    66,489.93/99,648.72 = 27,001.17/x
  3. Step 3: Cross multiply
    66,489.93x = 99,648.72 × 27,001.17
  4. Step 4: Simplify right side
    66,489.93x = 2,690,632,029.00
  5. Step 5: Solve for x
    x = 2,690,632,029.00/66,489.93
  6. Step 6: Final answer
    x = 40,466.76

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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.