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Finding the Fourth Proportional to 3,467.62, 5,201.48 and 870.56

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Solution

The fourth proportional to 3,467.62, 5,201.48 and 870.56 is: 1,305.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,467.62 : 5,201.48 = 870.56 : x
  2. Step 2: Convert to fraction form
    3,467.62/5,201.48 = 870.56/x
  3. Step 3: Cross multiply
    3,467.62x = 5,201.48 × 870.56
  4. Step 4: Simplify right side
    3,467.62x = 4,528,200.43
  5. Step 5: Solve for x
    x = 4,528,200.43/3,467.62
  6. Step 6: Final answer
    x = 1,305.85

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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.