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Finding the Fourth Proportional to 18,361,995.60, 27,519,373.80 and 11,165,890.80

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Solution

The fourth proportional to 18,361,995.60, 27,519,373.80 and 11,165,890.80 is: 16,734,473.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,361,995.60 : 27,519,373.80 = 11,165,890.80 : x
  2. Step 2: Convert to fraction form
    18,361,995.60/27,519,373.80 = 11,165,890.80/x
  3. Step 3: Cross multiply
    18,361,995.60x = 27,519,373.80 × 11,165,890.80
  4. Step 4: Simplify right side
    18,361,995.60x = 307,278,322,735,181.06
  5. Step 5: Solve for x
    x = 307,278,322,735,181.06/18,361,995.60
  6. Step 6: Final answer
    x = 16,734,473.17

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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.