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Finding the Third Proportional to 262.88 and 652.13

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Solution

The third proportional to 262.88 and 652.13 is: 1,617.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.88 : 652.13 = 652.13 : x
  2. Step 2: Convert to fraction form
    262.88/652.13 = 652.13/x
  3. Step 3: Cross multiply
    262.88x = 652.13 × 652.13
  4. Step 4: Simplify right side
    262.88x = 425,267.02
  5. Step 5: Solve for x
    x = 425,267.02/262.88
  6. Step 6: Final answer
    x = 1,617.75

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Why These Related Problems?

These problems maintain the same ratio (2.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.