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Finding the Third Proportional to 1,228.50 and 2,292

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Solution

The third proportional to 1,228.50 and 2,292 is: 4,276.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228.50 : 2,292 = 2,292 : x
  2. Step 2: Convert to fraction form
    1,228.50/2,292 = 2,292/x
  3. Step 3: Cross multiply
    1,228.50x = 2,292 × 2,292
  4. Step 4: Simplify right side
    1,228.50x = 5,253,264
  5. Step 5: Solve for x
    x = 5,253,264/1,228.50
  6. Step 6: Final answer
    x = 4,276.16

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.