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Finding the Third Proportional to 1,126 and 1,653

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Solution

The third proportional to 1,126 and 1,653 is: 2,426.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126 : 1,653 = 1,653 : x
  2. Step 2: Convert to fraction form
    1,126/1,653 = 1,653/x
  3. Step 3: Cross multiply
    1,126x = 1,653 × 1,653
  4. Step 4: Simplify right side
    1,126x = 2,732,409
  5. Step 5: Solve for x
    x = 2,732,409/1,126
  6. Step 6: Final answer
    x = 2,426.65

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.