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Finding the Fourth Proportional to 3,675.97, 5,072.97 and 3,509.92

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Solution

The fourth proportional to 3,675.97, 5,072.97 and 3,509.92 is: 4,843.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,675.97 : 5,072.97 = 3,509.92 : x
  2. Step 2: Convert to fraction form
    3,675.97/5,072.97 = 3,509.92/x
  3. Step 3: Cross multiply
    3,675.97x = 5,072.97 × 3,509.92
  4. Step 4: Simplify right side
    3,675.97x = 17,805,718.86
  5. Step 5: Solve for x
    x = 17,805,718.86/3,675.97
  6. Step 6: Final answer
    x = 4,843.82

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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.