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Finding the Fourth Proportional to 15,062.40, 22,604.40 and 8,481.60

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Solution

The fourth proportional to 15,062.40, 22,604.40 and 8,481.60 is: 12,728.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,062.40 : 22,604.40 = 8,481.60 : x
  2. Step 2: Convert to fraction form
    15,062.40/22,604.40 = 8,481.60/x
  3. Step 3: Cross multiply
    15,062.40x = 22,604.40 × 8,481.60
  4. Step 4: Simplify right side
    15,062.40x = 191,721,479.04
  5. Step 5: Solve for x
    x = 191,721,479.04/15,062.40
  6. Step 6: Final answer
    x = 12,728.48

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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.