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Finding the Fourth Proportional to 9,372.92, 12,934.49 and 5,124.06

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Solution

The fourth proportional to 9,372.92, 12,934.49 and 5,124.06 is: 7,071.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372.92 : 12,934.49 = 5,124.06 : x
  2. Step 2: Convert to fraction form
    9,372.92/12,934.49 = 5,124.06/x
  3. Step 3: Cross multiply
    9,372.92x = 12,934.49 × 5,124.06
  4. Step 4: Simplify right side
    9,372.92x = 66,277,077.21
  5. Step 5: Solve for x
    x = 66,277,077.21/9,372.92
  6. Step 6: Final answer
    x = 7,071.13

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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.