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Finding the Fourth Proportional to 18,109.94, 24,992.42 and 10,561.14

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Solution

The fourth proportional to 18,109.94, 24,992.42 and 10,561.14 is: 14,574.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.94 : 24,992.42 = 10,561.14 : x
  2. Step 2: Convert to fraction form
    18,109.94/24,992.42 = 10,561.14/x
  3. Step 3: Cross multiply
    18,109.94x = 24,992.42 × 10,561.14
  4. Step 4: Simplify right side
    18,109.94x = 263,948,393.75
  5. Step 5: Solve for x
    x = 263,948,393.75/18,109.94
  6. Step 6: Final answer
    x = 14,574.78

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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.