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Finding the Fourth Proportional to 7,158.71, 10,738.41 and 5,906.99

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Solution

The fourth proportional to 7,158.71, 10,738.41 and 5,906.99 is: 8,860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.71 : 10,738.41 = 5,906.99 : x
  2. Step 2: Convert to fraction form
    7,158.71/10,738.41 = 5,906.99/x
  3. Step 3: Cross multiply
    7,158.71x = 10,738.41 × 5,906.99
  4. Step 4: Simplify right side
    7,158.71x = 63,431,626.79
  5. Step 5: Solve for x
    x = 63,431,626.79/7,158.71
  6. Step 6: Final answer
    x = 8,860.77

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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.