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Finding the Third Proportional to 5,373.84 and 6,781.22

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Solution

The third proportional to 5,373.84 and 6,781.22 is: 8,557.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,373.84 : 6,781.22 = 6,781.22 : x
  2. Step 2: Convert to fraction form
    5,373.84/6,781.22 = 6,781.22/x
  3. Step 3: Cross multiply
    5,373.84x = 6,781.22 × 6,781.22
  4. Step 4: Simplify right side
    5,373.84x = 45,984,927.74
  5. Step 5: Solve for x
    x = 45,984,927.74/5,373.84
  6. Step 6: Final answer
    x = 8,557.18

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Why These Related Problems?

These problems maintain the same ratio (1.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.