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Finding the Third Proportional to 4,260 and 5,725

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Solution

The third proportional to 4,260 and 5,725 is: 7,693.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260 : 5,725 = 5,725 : x
  2. Step 2: Convert to fraction form
    4,260/5,725 = 5,725/x
  3. Step 3: Cross multiply
    4,260x = 5,725 × 5,725
  4. Step 4: Simplify right side
    4,260x = 32,775,625
  5. Step 5: Solve for x
    x = 32,775,625/4,260
  6. Step 6: Final answer
    x = 7,693.81

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.