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Finding the Fourth Proportional to 3,669.87, 5,504.74 and 896.55

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Solution

The fourth proportional to 3,669.87, 5,504.74 and 896.55 is: 1,344.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.87 : 5,504.74 = 896.55 : x
  2. Step 2: Convert to fraction form
    3,669.87/5,504.74 = 896.55/x
  3. Step 3: Cross multiply
    3,669.87x = 5,504.74 × 896.55
  4. Step 4: Simplify right side
    3,669.87x = 4,935,274.65
  5. Step 5: Solve for x
    x = 4,935,274.65/3,669.87
  6. Step 6: Final answer
    x = 1,344.81

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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.