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Finding the Third Proportional to 10,720 and 14,548

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Solution

The third proportional to 10,720 and 14,548 is: 19,742.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720 : 14,548 = 14,548 : x
  2. Step 2: Convert to fraction form
    10,720/14,548 = 14,548/x
  3. Step 3: Cross multiply
    10,720x = 14,548 × 14,548
  4. Step 4: Simplify right side
    10,720x = 211,644,304
  5. Step 5: Solve for x
    x = 211,644,304/10,720
  6. Step 6: Final answer
    x = 19,742.94

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.