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Finding the Fourth Proportional to 15,090, 22,592.82 and 11,380.62

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Solution

The fourth proportional to 15,090, 22,592.82 and 11,380.62 is: 17,039.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,090 : 22,592.82 = 11,380.62 : x
  2. Step 2: Convert to fraction form
    15,090/22,592.82 = 11,380.62/x
  3. Step 3: Cross multiply
    15,090x = 22,592.82 × 11,380.62
  4. Step 4: Simplify right side
    15,090x = 257,120,299.15
  5. Step 5: Solve for x
    x = 257,120,299.15/15,090
  6. Step 6: Final answer
    x = 17,039.12

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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.