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Finding the Fourth Proportional to 6,664.69, 9,994.12 and 3,543.94

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Solution

The fourth proportional to 6,664.69, 9,994.12 and 3,543.94 is: 5,314.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,664.69 : 9,994.12 = 3,543.94 : x
  2. Step 2: Convert to fraction form
    6,664.69/9,994.12 = 3,543.94/x
  3. Step 3: Cross multiply
    6,664.69x = 9,994.12 × 3,543.94
  4. Step 4: Simplify right side
    6,664.69x = 35,418,527.79
  5. Step 5: Solve for x
    x = 35,418,527.79/6,664.69
  6. Step 6: Final answer
    x = 5,314.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.