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Finding the Fourth Proportional to 5,473.92, 8,209.20 and 2,875.44

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Solution

The fourth proportional to 5,473.92, 8,209.20 and 2,875.44 is: 4,312.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,473.92 : 8,209.20 = 2,875.44 : x
  2. Step 2: Convert to fraction form
    5,473.92/8,209.20 = 2,875.44/x
  3. Step 3: Cross multiply
    5,473.92x = 8,209.20 × 2,875.44
  4. Step 4: Simplify right side
    5,473.92x = 23,605,062.05
  5. Step 5: Solve for x
    x = 23,605,062.05/5,473.92
  6. Step 6: Final answer
    x = 4,312.28

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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.