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Finding the Fourth Proportional to 4,869.63, 7,294.83 and 3,221.19

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Solution

The fourth proportional to 4,869.63, 7,294.83 and 3,221.19 is: 4,825.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.63 : 7,294.83 = 3,221.19 : x
  2. Step 2: Convert to fraction form
    4,869.63/7,294.83 = 3,221.19/x
  3. Step 3: Cross multiply
    4,869.63x = 7,294.83 × 3,221.19
  4. Step 4: Simplify right side
    4,869.63x = 23,498,033.45
  5. Step 5: Solve for x
    x = 23,498,033.45/4,869.63
  6. Step 6: Final answer
    x = 4,825.42

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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.