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Finding the Fourth Proportional to 22,687.91, 34,031.87 and 7,106.75

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Solution

The fourth proportional to 22,687.91, 34,031.87 and 7,106.75 is: 10,660.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,687.91 : 34,031.87 = 7,106.75 : x
  2. Step 2: Convert to fraction form
    22,687.91/34,031.87 = 7,106.75/x
  3. Step 3: Cross multiply
    22,687.91x = 34,031.87 × 7,106.75
  4. Step 4: Simplify right side
    22,687.91x = 241,855,992.12
  5. Step 5: Solve for x
    x = 241,855,992.12/22,687.91
  6. Step 6: Final answer
    x = 10,660.13

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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.