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Finding the Fourth Proportional to 5,753.12, 7,938.96 and 3,269.12

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Solution

The fourth proportional to 5,753.12, 7,938.96 and 3,269.12 is: 4,511.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,753.12 : 7,938.96 = 3,269.12 : x
  2. Step 2: Convert to fraction form
    5,753.12/7,938.96 = 3,269.12/x
  3. Step 3: Cross multiply
    5,753.12x = 7,938.96 × 3,269.12
  4. Step 4: Simplify right side
    5,753.12x = 25,953,412.92
  5. Step 5: Solve for x
    x = 25,953,412.92/5,753.12
  6. Step 6: Final answer
    x = 4,511.19

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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.