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Finding the Fourth Proportional to 3,772.76, 5,659.16 and 1,798.56

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Solution

The fourth proportional to 3,772.76, 5,659.16 and 1,798.56 is: 2,697.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.76 : 5,659.16 = 1,798.56 : x
  2. Step 2: Convert to fraction form
    3,772.76/5,659.16 = 1,798.56/x
  3. Step 3: Cross multiply
    3,772.76x = 5,659.16 × 1,798.56
  4. Step 4: Simplify right side
    3,772.76x = 10,178,329.82
  5. Step 5: Solve for x
    x = 10,178,329.82/3,772.76
  6. Step 6: Final answer
    x = 2,697.85

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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.