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Finding the Third Proportional to 5,393.81 and 7,240.13

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Solution

The third proportional to 5,393.81 and 7,240.13 is: 9,718.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393.81 : 7,240.13 = 7,240.13 : x
  2. Step 2: Convert to fraction form
    5,393.81/7,240.13 = 7,240.13/x
  3. Step 3: Cross multiply
    5,393.81x = 7,240.13 × 7,240.13
  4. Step 4: Simplify right side
    5,393.81x = 52,419,410.02
  5. Step 5: Solve for x
    x = 52,419,410.02/5,393.81
  6. Step 6: Final answer
    x = 9,718.43

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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.