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Finding the Fourth Proportional to 24,721.59, 34,115.59 and 13,390.82

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Solution

The fourth proportional to 24,721.59, 34,115.59 and 13,390.82 is: 18,479.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,721.59 : 34,115.59 = 13,390.82 : x
  2. Step 2: Convert to fraction form
    24,721.59/34,115.59 = 13,390.82/x
  3. Step 3: Cross multiply
    24,721.59x = 34,115.59 × 13,390.82
  4. Step 4: Simplify right side
    24,721.59x = 456,835,776.70
  5. Step 5: Solve for x
    x = 456,835,776.70/24,721.59
  6. Step 6: Final answer
    x = 18,479.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.