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Finding the Fourth Proportional to 15,342.60, 23,016.60 and 5,487.60

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Solution

The fourth proportional to 15,342.60, 23,016.60 and 5,487.60 is: 8,232.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,342.60 : 23,016.60 = 5,487.60 : x
  2. Step 2: Convert to fraction form
    15,342.60/23,016.60 = 5,487.60/x
  3. Step 3: Cross multiply
    15,342.60x = 23,016.60 × 5,487.60
  4. Step 4: Simplify right side
    15,342.60x = 126,305,894.16
  5. Step 5: Solve for x
    x = 126,305,894.16/15,342.60
  6. Step 6: Final answer
    x = 8,232.37

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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.