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Finding the Fourth Proportional to 59,472.78, 89,209.14 and 17,919.78

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Solution

The fourth proportional to 59,472.78, 89,209.14 and 17,919.78 is: 26,879.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,472.78 : 89,209.14 = 17,919.78 : x
  2. Step 2: Convert to fraction form
    59,472.78/89,209.14 = 17,919.78/x
  3. Step 3: Cross multiply
    59,472.78x = 89,209.14 × 17,919.78
  4. Step 4: Simplify right side
    59,472.78x = 1,598,608,162.79
  5. Step 5: Solve for x
    x = 1,598,608,162.79/59,472.78
  6. Step 6: Final answer
    x = 26,879.66

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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.