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Finding the Fourth Proportional to 5,943.74, 8,912.61 and 3,479.30

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Solution

The fourth proportional to 5,943.74, 8,912.61 and 3,479.30 is: 5,217.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,943.74 : 8,912.61 = 3,479.30 : x
  2. Step 2: Convert to fraction form
    5,943.74/8,912.61 = 3,479.30/x
  3. Step 3: Cross multiply
    5,943.74x = 8,912.61 × 3,479.30
  4. Step 4: Simplify right side
    5,943.74x = 31,009,643.97
  5. Step 5: Solve for x
    x = 31,009,643.97/5,943.74
  6. Step 6: Final answer
    x = 5,217.19

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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.