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Finding the Fourth Proportional to 5,338.33, 7,367.07 and 2,980.90

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Solution

The fourth proportional to 5,338.33, 7,367.07 and 2,980.90 is: 4,113.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,338.33 : 7,367.07 = 2,980.90 : x
  2. Step 2: Convert to fraction form
    5,338.33/7,367.07 = 2,980.90/x
  3. Step 3: Cross multiply
    5,338.33x = 7,367.07 × 2,980.90
  4. Step 4: Simplify right side
    5,338.33x = 21,960,498.96
  5. Step 5: Solve for x
    x = 21,960,498.96/5,338.33
  6. Step 6: Final answer
    x = 4,113.74

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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.