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Finding the Third Proportional to 929.38 and 1,394.19

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Solution

The third proportional to 929.38 and 1,394.19 is: 2,091.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    929.38 : 1,394.19 = 1,394.19 : x
  2. Step 2: Convert to fraction form
    929.38/1,394.19 = 1,394.19/x
  3. Step 3: Cross multiply
    929.38x = 1,394.19 × 1,394.19
  4. Step 4: Simplify right side
    929.38x = 1,943,758.79
  5. Step 5: Solve for x
    x = 1,943,758.79/929.38
  6. Step 6: Final answer
    x = 2,091.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.