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Finding the Third Proportional to 2,129.25 and 2,932

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Solution

The third proportional to 2,129.25 and 2,932 is: 4,037.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.25 : 2,932 = 2,932 : x
  2. Step 2: Convert to fraction form
    2,129.25/2,932 = 2,932/x
  3. Step 3: Cross multiply
    2,129.25x = 2,932 × 2,932
  4. Step 4: Simplify right side
    2,129.25x = 8,596,624
  5. Step 5: Solve for x
    x = 8,596,624/2,129.25
  6. Step 6: Final answer
    x = 4,037.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.