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Finding the Third Proportional to 6,972.75 and 7,570.13

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Solution

The third proportional to 6,972.75 and 7,570.13 is: 8,218.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.75 : 7,570.13 = 7,570.13 : x
  2. Step 2: Convert to fraction form
    6,972.75/7,570.13 = 7,570.13/x
  3. Step 3: Cross multiply
    6,972.75x = 7,570.13 × 7,570.13
  4. Step 4: Simplify right side
    6,972.75x = 57,306,792.52
  5. Step 5: Solve for x
    x = 57,306,792.52/6,972.75
  6. Step 6: Final answer
    x = 8,218.68

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.