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Finding the Third Proportional to 5,920 and 9,008

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Solution

The third proportional to 5,920 and 9,008 is: 13,706.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920 : 9,008 = 9,008 : x
  2. Step 2: Convert to fraction form
    5,920/9,008 = 9,008/x
  3. Step 3: Cross multiply
    5,920x = 9,008 × 9,008
  4. Step 4: Simplify right side
    5,920x = 81,144,064
  5. Step 5: Solve for x
    x = 81,144,064/5,920
  6. Step 6: Final answer
    x = 13,706.77

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.