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Finding the Fourth Proportional to 15,348.92, 23,020 and 5,488.88

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Solution

The fourth proportional to 15,348.92, 23,020 and 5,488.88 is: 8,232.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348.92 : 23,020 = 5,488.88 : x
  2. Step 2: Convert to fraction form
    15,348.92/23,020 = 5,488.88/x
  3. Step 3: Cross multiply
    15,348.92x = 23,020 × 5,488.88
  4. Step 4: Simplify right side
    15,348.92x = 126,354,017.60
  5. Step 5: Solve for x
    x = 126,354,017.60/15,348.92
  6. Step 6: Final answer
    x = 8,232.11

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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.