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Finding the Third Proportional to 2,265 and 2,911.50

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Solution

The third proportional to 2,265 and 2,911.50 is: 3,742.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265 : 2,911.50 = 2,911.50 : x
  2. Step 2: Convert to fraction form
    2,265/2,911.50 = 2,911.50/x
  3. Step 3: Cross multiply
    2,265x = 2,911.50 × 2,911.50
  4. Step 4: Simplify right side
    2,265x = 8,476,832.25
  5. Step 5: Solve for x
    x = 8,476,832.25/2,265
  6. Step 6: Final answer
    x = 3,742.53

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.