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Finding the Fourth Proportional to 15,012.60, 20,717.37 and 9,044.52

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Solution

The fourth proportional to 15,012.60, 20,717.37 and 9,044.52 is: 12,481.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,012.60 : 20,717.37 = 9,044.52 : x
  2. Step 2: Convert to fraction form
    15,012.60/20,717.37 = 9,044.52/x
  3. Step 3: Cross multiply
    15,012.60x = 20,717.37 × 9,044.52
  4. Step 4: Simplify right side
    15,012.60x = 187,378,667.31
  5. Step 5: Solve for x
    x = 187,378,667.31/15,012.60
  6. Step 6: Final answer
    x = 12,481.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.