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Finding the Fourth Proportional to 3,603.41, 4,976.80 and 2,422.43

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Solution

The fourth proportional to 3,603.41, 4,976.80 and 2,422.43 is: 3,345.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.41 : 4,976.80 = 2,422.43 : x
  2. Step 2: Convert to fraction form
    3,603.41/4,976.80 = 2,422.43/x
  3. Step 3: Cross multiply
    3,603.41x = 4,976.80 × 2,422.43
  4. Step 4: Simplify right side
    3,603.41x = 12,055,924.74
  5. Step 5: Solve for x
    x = 12,055,924.74/3,603.41
  6. Step 6: Final answer
    x = 3,345.70

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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.