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Finding the Fourth Proportional to 13,995.18, 20,992.74 and 9,599.30

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Solution

The fourth proportional to 13,995.18, 20,992.74 and 9,599.30 is: 14,398.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.18 : 20,992.74 = 9,599.30 : x
  2. Step 2: Convert to fraction form
    13,995.18/20,992.74 = 9,599.30/x
  3. Step 3: Cross multiply
    13,995.18x = 20,992.74 × 9,599.30
  4. Step 4: Simplify right side
    13,995.18x = 201,515,609.08
  5. Step 5: Solve for x
    x = 201,515,609.08/13,995.18
  6. Step 6: Final answer
    x = 14,398.93

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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.