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Finding the Third Proportional to 1,156 and 2,550

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Solution

The third proportional to 1,156 and 2,550 is: 5,625

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156 : 2,550 = 2,550 : x
  2. Step 2: Convert to fraction form
    1,156/2,550 = 2,550/x
  3. Step 3: Cross multiply
    1,156x = 2,550 × 2,550
  4. Step 4: Simplify right side
    1,156x = 6,502,500
  5. Step 5: Solve for x
    x = 6,502,500/1,156
  6. Step 6: Final answer
    x = 5,625

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.