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Finding the Third Proportional to 15,812 and 25,470

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Solution

The third proportional to 15,812 and 25,470 is: 41,027.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,812 : 25,470 = 25,470 : x
  2. Step 2: Convert to fraction form
    15,812/25,470 = 25,470/x
  3. Step 3: Cross multiply
    15,812x = 25,470 × 25,470
  4. Step 4: Simplify right side
    15,812x = 648,720,900
  5. Step 5: Solve for x
    x = 648,720,900/15,812
  6. Step 6: Final answer
    x = 41,027.12

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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.