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Finding the Third Proportional to 1,092 and 2,880

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Solution

The third proportional to 1,092 and 2,880 is: 7,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092 : 2,880 = 2,880 : x
  2. Step 2: Convert to fraction form
    1,092/2,880 = 2,880/x
  3. Step 3: Cross multiply
    1,092x = 2,880 × 2,880
  4. Step 4: Simplify right side
    1,092x = 8,294,400
  5. Step 5: Solve for x
    x = 8,294,400/1,092
  6. Step 6: Final answer
    x = 7,595.60

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Why These Related Problems?

These problems maintain the same ratio (2.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.