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Finding the Fourth Proportional to 13,992.67, 20,988.99 and 9,596.80

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Solution

The fourth proportional to 13,992.67, 20,988.99 and 9,596.80 is: 14,395.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.67 : 20,988.99 = 9,596.80 : x
  2. Step 2: Convert to fraction form
    13,992.67/20,988.99 = 9,596.80/x
  3. Step 3: Cross multiply
    13,992.67x = 20,988.99 × 9,596.80
  4. Step 4: Simplify right side
    13,992.67x = 201,427,091.25
  5. Step 5: Solve for x
    x = 201,427,091.25/13,992.67
  6. Step 6: Final answer
    x = 14,395.19

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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.