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Finding the Third Proportional to 4,254.75 and 6,386.75

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Solution

The third proportional to 4,254.75 and 6,386.75 is: 9,587.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,254.75 : 6,386.75 = 6,386.75 : x
  2. Step 2: Convert to fraction form
    4,254.75/6,386.75 = 6,386.75/x
  3. Step 3: Cross multiply
    4,254.75x = 6,386.75 × 6,386.75
  4. Step 4: Simplify right side
    4,254.75x = 40,790,575.56
  5. Step 5: Solve for x
    x = 40,790,575.56/4,254.75
  6. Step 6: Final answer
    x = 9,587.07

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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.