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Finding the Third Proportional to 468.75 and 1,214.13

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Solution

The third proportional to 468.75 and 1,214.13 is: 3,144.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.75 : 1,214.13 = 1,214.13 : x
  2. Step 2: Convert to fraction form
    468.75/1,214.13 = 1,214.13/x
  3. Step 3: Cross multiply
    468.75x = 1,214.13 × 1,214.13
  4. Step 4: Simplify right side
    468.75x = 1,474,099.52
  5. Step 5: Solve for x
    x = 1,474,099.52/468.75
  6. Step 6: Final answer
    x = 3,144.75

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Why These Related Problems?

These problems maintain the same ratio (2.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.