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Finding the Third Proportional to 10,960 and 15,620

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Solution

The third proportional to 10,960 and 15,620 is: 22,261.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,960 : 15,620 = 15,620 : x
  2. Step 2: Convert to fraction form
    10,960/15,620 = 15,620/x
  3. Step 3: Cross multiply
    10,960x = 15,620 × 15,620
  4. Step 4: Simplify right side
    10,960x = 243,984,400
  5. Step 5: Solve for x
    x = 243,984,400/10,960
  6. Step 6: Final answer
    x = 22,261.35

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.