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Finding the Third Proportional to 6,987 and 15,132

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Solution

The third proportional to 6,987 and 15,132 is: 32,771.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987 : 15,132 = 15,132 : x
  2. Step 2: Convert to fraction form
    6,987/15,132 = 15,132/x
  3. Step 3: Cross multiply
    6,987x = 15,132 × 15,132
  4. Step 4: Simplify right side
    6,987x = 228,977,424
  5. Step 5: Solve for x
    x = 228,977,424/6,987
  6. Step 6: Final answer
    x = 32,771.92

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.