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Finding the Fourth Proportional to 66,463.75, 99,655.53 and 26,488.89

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Solution

The fourth proportional to 66,463.75, 99,655.53 and 26,488.89 is: 39,717.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,463.75 : 99,655.53 = 26,488.89 : x
  2. Step 2: Convert to fraction form
    66,463.75/99,655.53 = 26,488.89/x
  3. Step 3: Cross multiply
    66,463.75x = 99,655.53 × 26,488.89
  4. Step 4: Simplify right side
    66,463.75x = 2,639,764,272.73
  5. Step 5: Solve for x
    x = 2,639,764,272.73/66,463.75
  6. Step 6: Final answer
    x = 39,717.35

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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.