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Finding the Third Proportional to 8,704.50 and 15,681

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Solution

The third proportional to 8,704.50 and 15,681 is: 28,249.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,704.50 : 15,681 = 15,681 : x
  2. Step 2: Convert to fraction form
    8,704.50/15,681 = 15,681/x
  3. Step 3: Cross multiply
    8,704.50x = 15,681 × 15,681
  4. Step 4: Simplify right side
    8,704.50x = 245,893,761
  5. Step 5: Solve for x
    x = 245,893,761/8,704.50
  6. Step 6: Final answer
    x = 28,249.04

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.