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Finding the Third Proportional to 5,113.13 and 6,240.80

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Solution

The third proportional to 5,113.13 and 6,240.80 is: 7,617.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.13 : 6,240.80 = 6,240.80 : x
  2. Step 2: Convert to fraction form
    5,113.13/6,240.80 = 6,240.80/x
  3. Step 3: Cross multiply
    5,113.13x = 6,240.80 × 6,240.80
  4. Step 4: Simplify right side
    5,113.13x = 38,947,545.64
  5. Step 5: Solve for x
    x = 38,947,545.64/5,113.13
  6. Step 6: Final answer
    x = 7,617.17

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.