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Finding the Third Proportional to 572.25 and 1,218.56

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Solution

The third proportional to 572.25 and 1,218.56 is: 2,594.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.25 : 1,218.56 = 1,218.56 : x
  2. Step 2: Convert to fraction form
    572.25/1,218.56 = 1,218.56/x
  3. Step 3: Cross multiply
    572.25x = 1,218.56 × 1,218.56
  4. Step 4: Simplify right side
    572.25x = 1,484,894.57
  5. Step 5: Solve for x
    x = 1,484,894.57/572.25
  6. Step 6: Final answer
    x = 2,594.84

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.