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Finding the Third Proportional to 6,261.75 and 8,812.13

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Solution

The third proportional to 6,261.75 and 8,812.13 is: 12,401.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.75 : 8,812.13 = 8,812.13 : x
  2. Step 2: Convert to fraction form
    6,261.75/8,812.13 = 8,812.13/x
  3. Step 3: Cross multiply
    6,261.75x = 8,812.13 × 8,812.13
  4. Step 4: Simplify right side
    6,261.75x = 77,653,547.02
  5. Step 5: Solve for x
    x = 77,653,547.02/6,261.75
  6. Step 6: Final answer
    x = 12,401.25

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.