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Finding the Third Proportional to 524.25 and 1,291.50

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Solution

The third proportional to 524.25 and 1,291.50 is: 3,181.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.25 : 1,291.50 = 1,291.50 : x
  2. Step 2: Convert to fraction form
    524.25/1,291.50 = 1,291.50/x
  3. Step 3: Cross multiply
    524.25x = 1,291.50 × 1,291.50
  4. Step 4: Simplify right side
    524.25x = 1,667,972.25
  5. Step 5: Solve for x
    x = 1,667,972.25/524.25
  6. Step 6: Final answer
    x = 3,181.64

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Why These Related Problems?

These problems maintain the same ratio (2.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.