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Finding the Fourth Proportional to 3,338.82, 5,007.80 and 873.84

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Solution

The fourth proportional to 3,338.82, 5,007.80 and 873.84 is: 1,310.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,338.82 : 5,007.80 = 873.84 : x
  2. Step 2: Convert to fraction form
    3,338.82/5,007.80 = 873.84/x
  3. Step 3: Cross multiply
    3,338.82x = 5,007.80 × 873.84
  4. Step 4: Simplify right side
    3,338.82x = 4,376,011.58
  5. Step 5: Solve for x
    x = 4,376,011.58/3,338.82
  6. Step 6: Final answer
    x = 1,310.65

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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.