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Finding the Fourth Proportional to 6,607.86, 9,905.07 and 4,144.39

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Solution

The fourth proportional to 6,607.86, 9,905.07 and 4,144.39 is: 6,212.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,607.86 : 9,905.07 = 4,144.39 : x
  2. Step 2: Convert to fraction form
    6,607.86/9,905.07 = 4,144.39/x
  3. Step 3: Cross multiply
    6,607.86x = 9,905.07 × 4,144.39
  4. Step 4: Simplify right side
    6,607.86x = 41,050,473.06
  5. Step 5: Solve for x
    x = 41,050,473.06/6,607.86
  6. Step 6: Final answer
    x = 6,212.37

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1.5x scale

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.