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Finding the Third Proportional to 7,090 and 9,727

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Solution

The third proportional to 7,090 and 9,727 is: 13,344.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090 : 9,727 = 9,727 : x
  2. Step 2: Convert to fraction form
    7,090/9,727 = 9,727/x
  3. Step 3: Cross multiply
    7,090x = 9,727 × 9,727
  4. Step 4: Simplify right side
    7,090x = 94,614,529
  5. Step 5: Solve for x
    x = 94,614,529/7,090
  6. Step 6: Final answer
    x = 13,344.79

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.