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Finding the Fourth Proportional to 3,244.83, 4,867.56 and 872.88

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Solution

The fourth proportional to 3,244.83, 4,867.56 and 872.88 is: 1,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,244.83 : 4,867.56 = 872.88 : x
  2. Step 2: Convert to fraction form
    3,244.83/4,867.56 = 872.88/x
  3. Step 3: Cross multiply
    3,244.83x = 4,867.56 × 872.88
  4. Step 4: Simplify right side
    3,244.83x = 4,248,767.07
  5. Step 5: Solve for x
    x = 4,248,767.07/3,244.83
  6. Step 6: Final answer
    x = 1,309.40

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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.