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Finding the Third Proportional to 704.25 and 1,074.38

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Solution

The third proportional to 704.25 and 1,074.38 is: 1,639.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.25 : 1,074.38 = 1,074.38 : x
  2. Step 2: Convert to fraction form
    704.25/1,074.38 = 1,074.38/x
  3. Step 3: Cross multiply
    704.25x = 1,074.38 × 1,074.38
  4. Step 4: Simplify right side
    704.25x = 1,154,281.64
  5. Step 5: Solve for x
    x = 1,154,281.64/704.25
  6. Step 6: Final answer
    x = 1,639.02

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.