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Finding the Third Proportional to 10,860 and 17,970

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Solution

The third proportional to 10,860 and 17,970 is: 29,734.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,860 : 17,970 = 17,970 : x
  2. Step 2: Convert to fraction form
    10,860/17,970 = 17,970/x
  3. Step 3: Cross multiply
    10,860x = 17,970 × 17,970
  4. Step 4: Simplify right side
    10,860x = 322,920,900
  5. Step 5: Solve for x
    x = 322,920,900/10,860
  6. Step 6: Final answer
    x = 29,734.89

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.