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Finding the Third Proportional to 576.65 and 1,243.00

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Solution

The third proportional to 576.65 and 1,243.00 is: 2,679.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.65 : 1,243.00 = 1,243.00 : x
  2. Step 2: Convert to fraction form
    576.65/1,243.00 = 1,243.00/x
  3. Step 3: Cross multiply
    576.65x = 1,243.00 × 1,243.00
  4. Step 4: Simplify right side
    576.65x = 1,545,053.86
  5. Step 5: Solve for x
    x = 1,545,053.86/576.65
  6. Step 6: Final answer
    x = 2,679.36

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.