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Finding the Third Proportional to 1,921.13 and 2,263.88

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Solution

The third proportional to 1,921.13 and 2,263.88 is: 2,667.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.13 : 2,263.88 = 2,263.88 : x
  2. Step 2: Convert to fraction form
    1,921.13/2,263.88 = 2,263.88/x
  3. Step 3: Cross multiply
    1,921.13x = 2,263.88 × 2,263.88
  4. Step 4: Simplify right side
    1,921.13x = 5,125,130.02
  5. Step 5: Solve for x
    x = 5,125,130.02/1,921.13
  6. Step 6: Final answer
    x = 2,667.78

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.