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Finding the Fourth Proportional to 13,992.13, 20,993.19 and 6,597.64

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Solution

The fourth proportional to 13,992.13, 20,993.19 and 6,597.64 is: 9,898.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.13 : 20,993.19 = 6,597.64 : x
  2. Step 2: Convert to fraction form
    13,992.13/20,993.19 = 6,597.64/x
  3. Step 3: Cross multiply
    13,992.13x = 20,993.19 × 6,597.64
  4. Step 4: Simplify right side
    13,992.13x = 138,505,510.07
  5. Step 5: Solve for x
    x = 138,505,510.07/13,992.13
  6. Step 6: Final answer
    x = 9,898.82

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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.