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Finding the Fourth Proportional to 11,127.70, 16,691.55 and 10,034.20

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Solution

The fourth proportional to 11,127.70, 16,691.55 and 10,034.20 is: 15,051.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.70 : 16,691.55 = 10,034.20 : x
  2. Step 2: Convert to fraction form
    11,127.70/16,691.55 = 10,034.20/x
  3. Step 3: Cross multiply
    11,127.70x = 16,691.55 × 10,034.20
  4. Step 4: Simplify right side
    11,127.70x = 167,486,351.01
  5. Step 5: Solve for x
    x = 167,486,351.01/11,127.70
  6. Step 6: Final answer
    x = 15,051.30

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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.