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Finding the Fourth Proportional to 3,763.92, 5,636.16 and 3,345.96

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Solution

The fourth proportional to 3,763.92, 5,636.16 and 3,345.96 is: 5,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,763.92 : 5,636.16 = 3,345.96 : x
  2. Step 2: Convert to fraction form
    3,763.92/5,636.16 = 3,345.96/x
  3. Step 3: Cross multiply
    3,763.92x = 5,636.16 × 3,345.96
  4. Step 4: Simplify right side
    3,763.92x = 18,858,365.91
  5. Step 5: Solve for x
    x = 18,858,365.91/3,763.92
  6. Step 6: Final answer
    x = 5,010.30

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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.