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Finding the Third Proportional to 5,880 and 9,109

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Solution

The third proportional to 5,880 and 9,109 is: 14,111.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,880 : 9,109 = 9,109 : x
  2. Step 2: Convert to fraction form
    5,880/9,109 = 9,109/x
  3. Step 3: Cross multiply
    5,880x = 9,109 × 9,109
  4. Step 4: Simplify right side
    5,880x = 82,973,881
  5. Step 5: Solve for x
    x = 82,973,881/5,880
  6. Step 6: Final answer
    x = 14,111.20

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.