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Finding the Fourth Proportional to 3,529.88, 5,295.12 and 932.78

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Solution

The fourth proportional to 3,529.88, 5,295.12 and 932.78 is: 1,399.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.88 : 5,295.12 = 932.78 : x
  2. Step 2: Convert to fraction form
    3,529.88/5,295.12 = 932.78/x
  3. Step 3: Cross multiply
    3,529.88x = 5,295.12 × 932.78
  4. Step 4: Simplify right side
    3,529.88x = 4,939,182.03
  5. Step 5: Solve for x
    x = 4,939,182.03/3,529.88
  6. Step 6: Final answer
    x = 1,399.25

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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.