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Finding the Fourth Proportional to 11,572.20, 17,350.20 and 5,335.20

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Solution

The fourth proportional to 11,572.20, 17,350.20 and 5,335.20 is: 7,999.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,572.20 : 17,350.20 = 5,335.20 : x
  2. Step 2: Convert to fraction form
    11,572.20/17,350.20 = 5,335.20/x
  3. Step 3: Cross multiply
    11,572.20x = 17,350.20 × 5,335.20
  4. Step 4: Simplify right side
    11,572.20x = 92,566,787.04
  5. Step 5: Solve for x
    x = 92,566,787.04/11,572.20
  6. Step 6: Final answer
    x = 7,999.07

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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.