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Finding the Fourth Proportional to 3,619.04, 4,994.20 and 1,963.04

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Solution

The fourth proportional to 3,619.04, 4,994.20 and 1,963.04 is: 2,708.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.04 : 4,994.20 = 1,963.04 : x
  2. Step 2: Convert to fraction form
    3,619.04/4,994.20 = 1,963.04/x
  3. Step 3: Cross multiply
    3,619.04x = 4,994.20 × 1,963.04
  4. Step 4: Simplify right side
    3,619.04x = 9,803,814.37
  5. Step 5: Solve for x
    x = 9,803,814.37/3,619.04
  6. Step 6: Final answer
    x = 2,708.95

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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.