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Finding the Fourth Proportional to 17,118.52, 25,677.71 and 5,432.65

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Solution

The fourth proportional to 17,118.52, 25,677.71 and 5,432.65 is: 8,148.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,118.52 : 25,677.71 = 5,432.65 : x
  2. Step 2: Convert to fraction form
    17,118.52/25,677.71 = 5,432.65/x
  3. Step 3: Cross multiply
    17,118.52x = 25,677.71 × 5,432.65
  4. Step 4: Simplify right side
    17,118.52x = 139,497,855.68
  5. Step 5: Solve for x
    x = 139,497,855.68/17,118.52
  6. Step 6: Final answer
    x = 8,148.95

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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.