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Finding the Third Proportional to 12,552 and 15,360

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Solution

The third proportional to 12,552 and 15,360 is: 18,796.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,552 : 15,360 = 15,360 : x
  2. Step 2: Convert to fraction form
    12,552/15,360 = 15,360/x
  3. Step 3: Cross multiply
    12,552x = 15,360 × 15,360
  4. Step 4: Simplify right side
    12,552x = 235,929,600
  5. Step 5: Solve for x
    x = 235,929,600/12,552
  6. Step 6: Final answer
    x = 18,796.18

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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.