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Finding the Fourth Proportional to 3,994.44, 5,509.80 and 3,339.96

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Solution

The fourth proportional to 3,994.44, 5,509.80 and 3,339.96 is: 4,607.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.44 : 5,509.80 = 3,339.96 : x
  2. Step 2: Convert to fraction form
    3,994.44/5,509.80 = 3,339.96/x
  3. Step 3: Cross multiply
    3,994.44x = 5,509.80 × 3,339.96
  4. Step 4: Simplify right side
    3,994.44x = 18,402,511.61
  5. Step 5: Solve for x
    x = 18,402,511.61/3,994.44
  6. Step 6: Final answer
    x = 4,607.03

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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.