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Finding the Fourth Proportional to 6,607.68, 9,914.74 and 2,909.44

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Solution

The fourth proportional to 6,607.68, 9,914.74 and 2,909.44 is: 4,365.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,607.68 : 9,914.74 = 2,909.44 : x
  2. Step 2: Convert to fraction form
    6,607.68/9,914.74 = 2,909.44/x
  3. Step 3: Cross multiply
    6,607.68x = 9,914.74 × 2,909.44
  4. Step 4: Simplify right side
    6,607.68x = 28,846,341.15
  5. Step 5: Solve for x
    x = 28,846,341.15/6,607.68
  6. Step 6: Final answer
    x = 4,365.58

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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.