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Finding the Fourth Proportional to 4,321.92, 5,973.12 and 3,204.48

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Solution

The fourth proportional to 4,321.92, 5,973.12 and 3,204.48 is: 4,428.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.92 : 5,973.12 = 3,204.48 : x
  2. Step 2: Convert to fraction form
    4,321.92/5,973.12 = 3,204.48/x
  3. Step 3: Cross multiply
    4,321.92x = 5,973.12 × 3,204.48
  4. Step 4: Simplify right side
    4,321.92x = 19,140,743.58
  5. Step 5: Solve for x
    x = 19,140,743.58/4,321.92
  6. Step 6: Final answer
    x = 4,428.76

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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.