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Finding the Third Proportional to 1,325.11 and 1,404.84

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Solution

The third proportional to 1,325.11 and 1,404.84 is: 1,489.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.11 : 1,404.84 = 1,404.84 : x
  2. Step 2: Convert to fraction form
    1,325.11/1,404.84 = 1,404.84/x
  3. Step 3: Cross multiply
    1,325.11x = 1,404.84 × 1,404.84
  4. Step 4: Simplify right side
    1,325.11x = 1,973,585.96
  5. Step 5: Solve for x
    x = 1,973,585.96/1,325.11
  6. Step 6: Final answer
    x = 1,489.38

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Why These Related Problems?

These problems maintain the same ratio (1.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.