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Finding the Fourth Proportional to 9,843.21, 14,763.55 and 2,917.17

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Solution

The fourth proportional to 9,843.21, 14,763.55 and 2,917.17 is: 4,375.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,843.21 : 14,763.55 = 2,917.17 : x
  2. Step 2: Convert to fraction form
    9,843.21/14,763.55 = 2,917.17/x
  3. Step 3: Cross multiply
    9,843.21x = 14,763.55 × 2,917.17
  4. Step 4: Simplify right side
    9,843.21x = 43,067,785.15
  5. Step 5: Solve for x
    x = 43,067,785.15/9,843.21
  6. Step 6: Final answer
    x = 4,375.38

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1.5x scale

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.