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Finding the Third Proportional to 567.42 and 1,239.47

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Solution

The third proportional to 567.42 and 1,239.47 is: 2,707.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.42 : 1,239.47 = 1,239.47 : x
  2. Step 2: Convert to fraction form
    567.42/1,239.47 = 1,239.47/x
  3. Step 3: Cross multiply
    567.42x = 1,239.47 × 1,239.47
  4. Step 4: Simplify right side
    567.42x = 1,536,282.78
  5. Step 5: Solve for x
    x = 1,536,282.78/567.42
  6. Step 6: Final answer
    x = 2,707.48

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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.