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Finding the Fourth Proportional to 5,718.60, 8,578.71 and 2,797.07

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Solution

The fourth proportional to 5,718.60, 8,578.71 and 2,797.07 is: 4,195.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.60 : 8,578.71 = 2,797.07 : x
  2. Step 2: Convert to fraction form
    5,718.60/8,578.71 = 2,797.07/x
  3. Step 3: Cross multiply
    5,718.60x = 8,578.71 × 2,797.07
  4. Step 4: Simplify right side
    5,718.60x = 23,995,209.49
  5. Step 5: Solve for x
    x = 23,995,209.49/5,718.60
  6. Step 6: Final answer
    x = 4,195.99

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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.