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Finding the Fourth Proportional to 12,531.44, 17,292.13 and 7,494.65

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Solution

The fourth proportional to 12,531.44, 17,292.13 and 7,494.65 is: 10,341.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.44 : 17,292.13 = 7,494.65 : x
  2. Step 2: Convert to fraction form
    12,531.44/17,292.13 = 7,494.65/x
  3. Step 3: Cross multiply
    12,531.44x = 17,292.13 × 7,494.65
  4. Step 4: Simplify right side
    12,531.44x = 129,598,462.10
  5. Step 5: Solve for x
    x = 129,598,462.10/12,531.44
  6. Step 6: Final answer
    x = 10,341.87

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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.