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Finding the Fourth Proportional to 9,989.44, 14,984.22 and 4,066.44

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Solution

The fourth proportional to 9,989.44, 14,984.22 and 4,066.44 is: 6,099.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989.44 : 14,984.22 = 4,066.44 : x
  2. Step 2: Convert to fraction form
    9,989.44/14,984.22 = 4,066.44/x
  3. Step 3: Cross multiply
    9,989.44x = 14,984.22 × 4,066.44
  4. Step 4: Simplify right side
    9,989.44x = 60,932,431.58
  5. Step 5: Solve for x
    x = 60,932,431.58/9,989.44
  6. Step 6: Final answer
    x = 6,099.68

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Similar ratio
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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.