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Finding the Fourth Proportional to 17,691.98, 24,406.80 and 11,315.39

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Solution

The fourth proportional to 17,691.98, 24,406.80 and 11,315.39 is: 15,610.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,691.98 : 24,406.80 = 11,315.39 : x
  2. Step 2: Convert to fraction form
    17,691.98/24,406.80 = 11,315.39/x
  3. Step 3: Cross multiply
    17,691.98x = 24,406.80 × 11,315.39
  4. Step 4: Simplify right side
    17,691.98x = 276,172,460.65
  5. Step 5: Solve for x
    x = 276,172,460.65/17,691.98
  6. Step 6: Final answer
    x = 15,610.04

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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.