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Finding the Fourth Proportional to 15,172.60, 22,743.76 and 7,260.52

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Solution

The fourth proportional to 15,172.60, 22,743.76 and 7,260.52 is: 10,883.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,172.60 : 22,743.76 = 7,260.52 : x
  2. Step 2: Convert to fraction form
    15,172.60/22,743.76 = 7,260.52/x
  3. Step 3: Cross multiply
    15,172.60x = 22,743.76 × 7,260.52
  4. Step 4: Simplify right side
    15,172.60x = 165,131,524.36
  5. Step 5: Solve for x
    x = 165,131,524.36/15,172.60
  6. Step 6: Final answer
    x = 10,883.54

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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.