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Finding the Third Proportional to 4,156.31 and 6,172.88

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Solution

The third proportional to 4,156.31 and 6,172.88 is: 9,167.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,156.31 : 6,172.88 = 6,172.88 : x
  2. Step 2: Convert to fraction form
    4,156.31/6,172.88 = 6,172.88/x
  3. Step 3: Cross multiply
    4,156.31x = 6,172.88 × 6,172.88
  4. Step 4: Simplify right side
    4,156.31x = 38,104,385.77
  5. Step 5: Solve for x
    x = 38,104,385.77/4,156.31
  6. Step 6: Final answer
    x = 9,167.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.