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Finding the Third Proportional to 792 and 1,455.75

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Solution

The third proportional to 792 and 1,455.75 is: 2,675.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    792 : 1,455.75 = 1,455.75 : x
  2. Step 2: Convert to fraction form
    792/1,455.75 = 1,455.75/x
  3. Step 3: Cross multiply
    792x = 1,455.75 × 1,455.75
  4. Step 4: Simplify right side
    792x = 2,119,208.06
  5. Step 5: Solve for x
    x = 2,119,208.06/792
  6. Step 6: Final answer
    x = 2,675.77

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Why These Related Problems?

These problems maintain the same ratio (1.84) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.