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Finding the Fourth Proportional to 18,054.90, 24,914.79 and 11,338.38

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Solution

The fourth proportional to 18,054.90, 24,914.79 and 11,338.38 is: 15,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,054.90 : 24,914.79 = 11,338.38 : x
  2. Step 2: Convert to fraction form
    18,054.90/24,914.79 = 11,338.38/x
  3. Step 3: Cross multiply
    18,054.90x = 24,914.79 × 11,338.38
  4. Step 4: Simplify right side
    18,054.90x = 282,493,356.64
  5. Step 5: Solve for x
    x = 282,493,356.64/18,054.90
  6. Step 6: Final answer
    x = 15,646.35

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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.