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Finding the Third Proportional to 1,074.75 and 1,416.38

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Solution

The third proportional to 1,074.75 and 1,416.38 is: 1,866.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074.75 : 1,416.38 = 1,416.38 : x
  2. Step 2: Convert to fraction form
    1,074.75/1,416.38 = 1,416.38/x
  3. Step 3: Cross multiply
    1,074.75x = 1,416.38 × 1,416.38
  4. Step 4: Simplify right side
    1,074.75x = 2,006,118.14
  5. Step 5: Solve for x
    x = 2,006,118.14/1,074.75
  6. Step 6: Final answer
    x = 1,866.59

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.