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Finding the Third Proportional to 12,656 and 15,464

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Solution

The third proportional to 12,656 and 15,464 is: 18,895.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656 : 15,464 = 15,464 : x
  2. Step 2: Convert to fraction form
    12,656/15,464 = 15,464/x
  3. Step 3: Cross multiply
    12,656x = 15,464 × 15,464
  4. Step 4: Simplify right side
    12,656x = 239,135,296
  5. Step 5: Solve for x
    x = 239,135,296/12,656
  6. Step 6: Final answer
    x = 18,895.01

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.