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Finding the Third Proportional to 713.81 and 1,271.53

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Solution

The third proportional to 713.81 and 1,271.53 is: 2,265.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    713.81 : 1,271.53 = 1,271.53 : x
  2. Step 2: Convert to fraction form
    713.81/1,271.53 = 1,271.53/x
  3. Step 3: Cross multiply
    713.81x = 1,271.53 × 1,271.53
  4. Step 4: Simplify right side
    713.81x = 1,616,791.72
  5. Step 5: Solve for x
    x = 1,616,791.72/713.81
  6. Step 6: Final answer
    x = 2,265.01

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.