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Finding the Third Proportional to 5,985 and 9,150

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Solution

The third proportional to 5,985 and 9,150 is: 13,988.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,985 : 9,150 = 9,150 : x
  2. Step 2: Convert to fraction form
    5,985/9,150 = 9,150/x
  3. Step 3: Cross multiply
    5,985x = 9,150 × 9,150
  4. Step 4: Simplify right side
    5,985x = 83,722,500
  5. Step 5: Solve for x
    x = 83,722,500/5,985
  6. Step 6: Final answer
    x = 13,988.72

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.