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Finding the Fourth Proportional to 5,401.97, 7,454.72 and 2,917.97

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Solution

The fourth proportional to 5,401.97, 7,454.72 and 2,917.97 is: 4,026.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,401.97 : 7,454.72 = 2,917.97 : x
  2. Step 2: Convert to fraction form
    5,401.97/7,454.72 = 2,917.97/x
  3. Step 3: Cross multiply
    5,401.97x = 7,454.72 × 2,917.97
  4. Step 4: Simplify right side
    5,401.97x = 21,752,647.29
  5. Step 5: Solve for x
    x = 21,752,647.29/5,401.97
  6. Step 6: Final answer
    x = 4,026.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.