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Finding the Fourth Proportional to 5,718.81, 8,578.20 and 3,756.82

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Solution

The fourth proportional to 5,718.81, 8,578.20 and 3,756.82 is: 5,635.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.81 : 8,578.20 = 3,756.82 : x
  2. Step 2: Convert to fraction form
    5,718.81/8,578.20 = 3,756.82/x
  3. Step 3: Cross multiply
    5,718.81x = 8,578.20 × 3,756.82
  4. Step 4: Simplify right side
    5,718.81x = 32,226,753.32
  5. Step 5: Solve for x
    x = 32,226,753.32/5,718.81
  6. Step 6: Final answer
    x = 5,635.22

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Similar ratio
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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.