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Finding the Fourth Proportional to 3,619.52, 4,994.92 and 1,963.52

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Solution

The fourth proportional to 3,619.52, 4,994.92 and 1,963.52 is: 2,709.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.52 : 4,994.92 = 1,963.52 : x
  2. Step 2: Convert to fraction form
    3,619.52/4,994.92 = 1,963.52/x
  3. Step 3: Cross multiply
    3,619.52x = 4,994.92 × 1,963.52
  4. Step 4: Simplify right side
    3,619.52x = 9,807,625.32
  5. Step 5: Solve for x
    x = 9,807,625.32/3,619.52
  6. Step 6: Final answer
    x = 2,709.65

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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.