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Finding the Fourth Proportional to 3,568.80, 4,924.80 and 2,076.76

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Solution

The fourth proportional to 3,568.80, 4,924.80 and 2,076.76 is: 2,865.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,568.80 : 4,924.80 = 2,076.76 : x
  2. Step 2: Convert to fraction form
    3,568.80/4,924.80 = 2,076.76/x
  3. Step 3: Cross multiply
    3,568.80x = 4,924.80 × 2,076.76
  4. Step 4: Simplify right side
    3,568.80x = 10,227,627.65
  5. Step 5: Solve for x
    x = 10,227,627.65/3,568.80
  6. Step 6: Final answer
    x = 2,865.85

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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.