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Finding the Fourth Proportional to 5,232.87, 7,221.18 and 2,874.87

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Solution

The fourth proportional to 5,232.87, 7,221.18 and 2,874.87 is: 3,967.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,232.87 : 7,221.18 = 2,874.87 : x
  2. Step 2: Convert to fraction form
    5,232.87/7,221.18 = 2,874.87/x
  3. Step 3: Cross multiply
    5,232.87x = 7,221.18 × 2,874.87
  4. Step 4: Simplify right side
    5,232.87x = 20,759,953.75
  5. Step 5: Solve for x
    x = 20,759,953.75/5,232.87
  6. Step 6: Final answer
    x = 3,967.22

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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.