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Finding the Fourth Proportional to 8,843.72, 13,264.14 and 2,687.72

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Solution

The fourth proportional to 8,843.72, 13,264.14 and 2,687.72 is: 4,031.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,843.72 : 13,264.14 = 2,687.72 : x
  2. Step 2: Convert to fraction form
    8,843.72/13,264.14 = 2,687.72/x
  3. Step 3: Cross multiply
    8,843.72x = 13,264.14 × 2,687.72
  4. Step 4: Simplify right side
    8,843.72x = 35,650,294.36
  5. Step 5: Solve for x
    x = 35,650,294.36/8,843.72
  6. Step 6: Final answer
    x = 4,031.14

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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.