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Finding the Fourth Proportional to 7,755.15, 10,698.17 and 5,067.95

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Solution

The fourth proportional to 7,755.15, 10,698.17 and 5,067.95 is: 6,991.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.15 : 10,698.17 = 5,067.95 : x
  2. Step 2: Convert to fraction form
    7,755.15/10,698.17 = 5,067.95/x
  3. Step 3: Cross multiply
    7,755.15x = 10,698.17 × 5,067.95
  4. Step 4: Simplify right side
    7,755.15x = 54,217,711.82
  5. Step 5: Solve for x
    x = 54,217,711.82/7,755.15
  6. Step 6: Final answer
    x = 6,991.19

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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.