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Finding the Fourth Proportional to 12,411.91, 17,125.41 and 7,375.96

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Solution

The fourth proportional to 12,411.91, 17,125.41 and 7,375.96 is: 10,177.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,411.91 : 17,125.41 = 7,375.96 : x
  2. Step 2: Convert to fraction form
    12,411.91/17,125.41 = 7,375.96/x
  3. Step 3: Cross multiply
    12,411.91x = 17,125.41 × 7,375.96
  4. Step 4: Simplify right side
    12,411.91x = 126,316,339.14
  5. Step 5: Solve for x
    x = 126,316,339.14/12,411.91
  6. Step 6: Final answer
    x = 10,177.03

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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.