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Finding the Third Proportional to 1,160 and 2,615

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Solution

The third proportional to 1,160 and 2,615 is: 5,895.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160 : 2,615 = 2,615 : x
  2. Step 2: Convert to fraction form
    1,160/2,615 = 2,615/x
  3. Step 3: Cross multiply
    1,160x = 2,615 × 2,615
  4. Step 4: Simplify right side
    1,160x = 6,838,225
  5. Step 5: Solve for x
    x = 6,838,225/1,160
  6. Step 6: Final answer
    x = 5,895.02

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Why These Related Problems?

These problems maintain the same ratio (2.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.