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Finding the Third Proportional to 5,670 and 9,418

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Solution

The third proportional to 5,670 and 9,418 is: 15,643.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,670 : 9,418 = 9,418 : x
  2. Step 2: Convert to fraction form
    5,670/9,418 = 9,418/x
  3. Step 3: Cross multiply
    5,670x = 9,418 × 9,418
  4. Step 4: Simplify right side
    5,670x = 88,698,724
  5. Step 5: Solve for x
    x = 88,698,724/5,670
  6. Step 6: Final answer
    x = 15,643.51

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.