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Finding the Fourth Proportional to 9,843.19, 14,764.78 and 2,917.69

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Solution

The fourth proportional to 9,843.19, 14,764.78 and 2,917.69 is: 4,376.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,843.19 : 14,764.78 = 2,917.69 : x
  2. Step 2: Convert to fraction form
    9,843.19/14,764.78 = 2,917.69/x
  3. Step 3: Cross multiply
    9,843.19x = 14,764.78 × 2,917.69
  4. Step 4: Simplify right side
    9,843.19x = 43,079,017.69
  5. Step 5: Solve for x
    x = 43,079,017.69/9,843.19
  6. Step 6: Final answer
    x = 4,376.53

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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.