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Finding the Third Proportional to 8,752 and 15,722

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Solution

The third proportional to 8,752 and 15,722 is: 28,242.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752 : 15,722 = 15,722 : x
  2. Step 2: Convert to fraction form
    8,752/15,722 = 15,722/x
  3. Step 3: Cross multiply
    8,752x = 15,722 × 15,722
  4. Step 4: Simplify right side
    8,752x = 247,181,284
  5. Step 5: Solve for x
    x = 247,181,284/8,752
  6. Step 6: Final answer
    x = 28,242.83

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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.