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Finding the Third Proportional to 4,089 and 6,116.25

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Solution

The third proportional to 4,089 and 6,116.25 is: 9,148.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089 : 6,116.25 = 6,116.25 : x
  2. Step 2: Convert to fraction form
    4,089/6,116.25 = 6,116.25/x
  3. Step 3: Cross multiply
    4,089x = 6,116.25 × 6,116.25
  4. Step 4: Simplify right side
    4,089x = 37,408,514.06
  5. Step 5: Solve for x
    x = 37,408,514.06/4,089
  6. Step 6: Final answer
    x = 9,148.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.