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Finding the Fourth Proportional to 18,992.74, 26,199.03 and 11,433.82

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Solution

The fourth proportional to 18,992.74, 26,199.03 and 11,433.82 is: 15,772.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992.74 : 26,199.03 = 11,433.82 : x
  2. Step 2: Convert to fraction form
    18,992.74/26,199.03 = 11,433.82/x
  3. Step 3: Cross multiply
    18,992.74x = 26,199.03 × 11,433.82
  4. Step 4: Simplify right side
    18,992.74x = 299,554,993.19
  5. Step 5: Solve for x
    x = 299,554,993.19/18,992.74
  6. Step 6: Final answer
    x = 15,772.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.