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Finding the Fourth Proportional to 12,347.92, 18,481.74 and 9,060.22

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Solution

The fourth proportional to 12,347.92, 18,481.74 and 9,060.22 is: 13,560.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.92 : 18,481.74 = 9,060.22 : x
  2. Step 2: Convert to fraction form
    12,347.92/18,481.74 = 9,060.22/x
  3. Step 3: Cross multiply
    12,347.92x = 18,481.74 × 9,060.22
  4. Step 4: Simplify right side
    12,347.92x = 167,448,630.38
  5. Step 5: Solve for x
    x = 167,448,630.38/12,347.92
  6. Step 6: Final answer
    x = 13,560.88

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1.5x scale

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.