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Finding the Fourth Proportional to 9,487.92, 14,233.92 and 2,913.60

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Solution

The fourth proportional to 9,487.92, 14,233.92 and 2,913.60 is: 4,371.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,487.92 : 14,233.92 = 2,913.60 : x
  2. Step 2: Convert to fraction form
    9,487.92/14,233.92 = 2,913.60/x
  3. Step 3: Cross multiply
    9,487.92x = 14,233.92 × 2,913.60
  4. Step 4: Simplify right side
    9,487.92x = 41,471,934.74
  5. Step 5: Solve for x
    x = 41,471,934.74/9,487.92
  6. Step 6: Final answer
    x = 4,371.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.