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Finding the Fourth Proportional to 18,109.14, 24,990.84 and 11,036.22

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Solution

The fourth proportional to 18,109.14, 24,990.84 and 11,036.22 is: 15,230.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.14 : 24,990.84 = 11,036.22 : x
  2. Step 2: Convert to fraction form
    18,109.14/24,990.84 = 11,036.22/x
  3. Step 3: Cross multiply
    18,109.14x = 24,990.84 × 11,036.22
  4. Step 4: Simplify right side
    18,109.14x = 275,804,408.22
  5. Step 5: Solve for x
    x = 275,804,408.22/18,109.14
  6. Step 6: Final answer
    x = 15,230.12

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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.