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Finding the Third Proportional to 363.75 and 562.50

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Solution

The third proportional to 363.75 and 562.50 is: 869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.75 : 562.50 = 562.50 : x
  2. Step 2: Convert to fraction form
    363.75/562.50 = 562.50/x
  3. Step 3: Cross multiply
    363.75x = 562.50 × 562.50
  4. Step 4: Simplify right side
    363.75x = 316,406.25
  5. Step 5: Solve for x
    x = 316,406.25/363.75
  6. Step 6: Final answer
    x = 869.85

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.