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Finding the Third Proportional to 670.78 and 1,463.06

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Solution

The third proportional to 670.78 and 1,463.06 is: 3,191.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.78 : 1,463.06 = 1,463.06 : x
  2. Step 2: Convert to fraction form
    670.78/1,463.06 = 1,463.06/x
  3. Step 3: Cross multiply
    670.78x = 1,463.06 × 1,463.06
  4. Step 4: Simplify right side
    670.78x = 2,140,551.88
  5. Step 5: Solve for x
    x = 2,140,551.88/670.78
  6. Step 6: Final answer
    x = 3,191.13

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.