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Finding the Third Proportional to 881.75 and 1,364.50

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Solution

The third proportional to 881.75 and 1,364.50 is: 2,111.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    881.75 : 1,364.50 = 1,364.50 : x
  2. Step 2: Convert to fraction form
    881.75/1,364.50 = 1,364.50/x
  3. Step 3: Cross multiply
    881.75x = 1,364.50 × 1,364.50
  4. Step 4: Simplify right side
    881.75x = 1,861,860.25
  5. Step 5: Solve for x
    x = 1,861,860.25/881.75
  6. Step 6: Final answer
    x = 2,111.55

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.