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Finding the Third Proportional to 10,830 and 15,860

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Solution

The third proportional to 10,830 and 15,860 is: 23,226.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,830 : 15,860 = 15,860 : x
  2. Step 2: Convert to fraction form
    10,830/15,860 = 15,860/x
  3. Step 3: Cross multiply
    10,830x = 15,860 × 15,860
  4. Step 4: Simplify right side
    10,830x = 251,539,600
  5. Step 5: Solve for x
    x = 251,539,600/10,830
  6. Step 6: Final answer
    x = 23,226.19

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.