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Finding the Fourth Proportional to 3,903.57, 5,392.98 and 3,272.99

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Solution

The fourth proportional to 3,903.57, 5,392.98 and 3,272.99 is: 4,521.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.57 : 5,392.98 = 3,272.99 : x
  2. Step 2: Convert to fraction form
    3,903.57/5,392.98 = 3,272.99/x
  3. Step 3: Cross multiply
    3,903.57x = 5,392.98 × 3,272.99
  4. Step 4: Simplify right side
    3,903.57x = 17,651,142.65
  5. Step 5: Solve for x
    x = 17,651,142.65/3,903.57
  6. Step 6: Final answer
    x = 4,521.79

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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.