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Finding the Third Proportional to 5,076 and 7,131

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Solution

The third proportional to 5,076 and 7,131 is: 10,017.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076 : 7,131 = 7,131 : x
  2. Step 2: Convert to fraction form
    5,076/7,131 = 7,131/x
  3. Step 3: Cross multiply
    5,076x = 7,131 × 7,131
  4. Step 4: Simplify right side
    5,076x = 50,851,161
  5. Step 5: Solve for x
    x = 50,851,161/5,076
  6. Step 6: Final answer
    x = 10,017.96

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.