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Finding the Third Proportional to 1,281.75 and 1,832.86

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Solution

The third proportional to 1,281.75 and 1,832.86 is: 2,620.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281.75 : 1,832.86 = 1,832.86 : x
  2. Step 2: Convert to fraction form
    1,281.75/1,832.86 = 1,832.86/x
  3. Step 3: Cross multiply
    1,281.75x = 1,832.86 × 1,832.86
  4. Step 4: Simplify right side
    1,281.75x = 3,359,373.49
  5. Step 5: Solve for x
    x = 3,359,373.49/1,281.75
  6. Step 6: Final answer
    x = 2,620.93

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These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.