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Finding the Fourth Proportional to 3,418.66, 4,717.80 and 2,003.32

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Solution

The fourth proportional to 3,418.66, 4,717.80 and 2,003.32 is: 2,764.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.66 : 4,717.80 = 2,003.32 : x
  2. Step 2: Convert to fraction form
    3,418.66/4,717.80 = 2,003.32/x
  3. Step 3: Cross multiply
    3,418.66x = 4,717.80 × 2,003.32
  4. Step 4: Simplify right side
    3,418.66x = 9,451,263.10
  5. Step 5: Solve for x
    x = 9,451,263.10/3,418.66
  6. Step 6: Final answer
    x = 2,764.61

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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.