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Finding the Third Proportional to 4,038.19 and 5,452.31

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Solution

The third proportional to 4,038.19 and 5,452.31 is: 7,361.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,038.19 : 5,452.31 = 5,452.31 : x
  2. Step 2: Convert to fraction form
    4,038.19/5,452.31 = 5,452.31/x
  3. Step 3: Cross multiply
    4,038.19x = 5,452.31 × 5,452.31
  4. Step 4: Simplify right side
    4,038.19x = 29,727,711.60
  5. Step 5: Solve for x
    x = 29,727,711.60/4,038.19
  6. Step 6: Final answer
    x = 7,361.65

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.