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Finding the Third Proportional to 8,824.50 and 13,656

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Solution

The third proportional to 8,824.50 and 13,656 is: 21,132.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,824.50 : 13,656 = 13,656 : x
  2. Step 2: Convert to fraction form
    8,824.50/13,656 = 13,656/x
  3. Step 3: Cross multiply
    8,824.50x = 13,656 × 13,656
  4. Step 4: Simplify right side
    8,824.50x = 186,486,336
  5. Step 5: Solve for x
    x = 186,486,336/8,824.50
  6. Step 6: Final answer
    x = 21,132.79

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.