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Finding the Third Proportional to 1,113.19 and 2,692.69

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Solution

The third proportional to 1,113.19 and 2,692.69 is: 6,513.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.19 : 2,692.69 = 2,692.69 : x
  2. Step 2: Convert to fraction form
    1,113.19/2,692.69 = 2,692.69/x
  3. Step 3: Cross multiply
    1,113.19x = 2,692.69 × 2,692.69
  4. Step 4: Simplify right side
    1,113.19x = 7,250,565.97
  5. Step 5: Solve for x
    x = 7,250,565.97/1,113.19
  6. Step 6: Final answer
    x = 6,513.34

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.