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Finding the Third Proportional to 1,125.88 and 1,646.75

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Solution

The third proportional to 1,125.88 and 1,646.75 is: 2,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125.88 : 1,646.75 = 1,646.75 : x
  2. Step 2: Convert to fraction form
    1,125.88/1,646.75 = 1,646.75/x
  3. Step 3: Cross multiply
    1,125.88x = 1,646.75 × 1,646.75
  4. Step 4: Simplify right side
    1,125.88x = 2,711,785.56
  5. Step 5: Solve for x
    x = 2,711,785.56/1,125.88
  6. Step 6: Final answer
    x = 2,408.60

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.