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Finding the Fourth Proportional to 3,661.77, 5,515.72 and 3,334.79

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Solution

The fourth proportional to 3,661.77, 5,515.72 and 3,334.79 is: 5,023.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.77 : 5,515.72 = 3,334.79 : x
  2. Step 2: Convert to fraction form
    3,661.77/5,515.72 = 3,334.79/x
  3. Step 3: Cross multiply
    3,661.77x = 5,515.72 × 3,334.79
  4. Step 4: Simplify right side
    3,661.77x = 18,393,723.65
  5. Step 5: Solve for x
    x = 18,393,723.65/3,661.77
  6. Step 6: Final answer
    x = 5,023.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.