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Finding the Third Proportional to 15,752 and 25,380

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Solution

The third proportional to 15,752 and 25,380 is: 40,892.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,752 : 25,380 = 25,380 : x
  2. Step 2: Convert to fraction form
    15,752/25,380 = 25,380/x
  3. Step 3: Cross multiply
    15,752x = 25,380 × 25,380
  4. Step 4: Simplify right side
    15,752x = 644,144,400
  5. Step 5: Solve for x
    x = 644,144,400/15,752
  6. Step 6: Final answer
    x = 40,892.86

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.