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Finding the Fourth Proportional to 9,899.99, 14,850.72 and 3,326.12

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Solution

The fourth proportional to 9,899.99, 14,850.72 and 3,326.12 is: 4,989.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.99 : 14,850.72 = 3,326.12 : x
  2. Step 2: Convert to fraction form
    9,899.99/14,850.72 = 3,326.12/x
  3. Step 3: Cross multiply
    9,899.99x = 14,850.72 × 3,326.12
  4. Step 4: Simplify right side
    9,899.99x = 49,395,202.55
  5. Step 5: Solve for x
    x = 49,395,202.55/9,899.99
  6. Step 6: Final answer
    x = 4,989.42

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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.