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Finding the Third Proportional to 4,318.50 and 7,281

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Solution

The third proportional to 4,318.50 and 7,281 is: 12,275.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,318.50 : 7,281 = 7,281 : x
  2. Step 2: Convert to fraction form
    4,318.50/7,281 = 7,281/x
  3. Step 3: Cross multiply
    4,318.50x = 7,281 × 7,281
  4. Step 4: Simplify right side
    4,318.50x = 53,012,961
  5. Step 5: Solve for x
    x = 53,012,961/4,318.50
  6. Step 6: Final answer
    x = 12,275.78

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These problems maintain the same ratio (1.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.