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Finding the Third Proportional to 916.25 and 2,014.75

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Solution

The third proportional to 916.25 and 2,014.75 is: 4,430.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    916.25 : 2,014.75 = 2,014.75 : x
  2. Step 2: Convert to fraction form
    916.25/2,014.75 = 2,014.75/x
  3. Step 3: Cross multiply
    916.25x = 2,014.75 × 2,014.75
  4. Step 4: Simplify right side
    916.25x = 4,059,217.56
  5. Step 5: Solve for x
    x = 4,059,217.56/916.25
  6. Step 6: Final answer
    x = 4,430.25

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.