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Finding the Fourth Proportional to 5,338.77, 7,367.99 and 2,981.49

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Solution

The fourth proportional to 5,338.77, 7,367.99 and 2,981.49 is: 4,114.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,338.77 : 7,367.99 = 2,981.49 : x
  2. Step 2: Convert to fraction form
    5,338.77/7,367.99 = 2,981.49/x
  3. Step 3: Cross multiply
    5,338.77x = 7,367.99 × 2,981.49
  4. Step 4: Simplify right side
    5,338.77x = 21,967,573.60
  5. Step 5: Solve for x
    x = 21,967,573.60/5,338.77
  6. Step 6: Final answer
    x = 4,114.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.