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Finding the Fourth Proportional to 28,811.13, 43,187.04 and 11,036.97

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Solution

The fourth proportional to 28,811.13, 43,187.04 and 11,036.97 is: 16,544.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,811.13 : 43,187.04 = 11,036.97 : x
  2. Step 2: Convert to fraction form
    28,811.13/43,187.04 = 11,036.97/x
  3. Step 3: Cross multiply
    28,811.13x = 43,187.04 × 11,036.97
  4. Step 4: Simplify right side
    28,811.13x = 476,654,064.87
  5. Step 5: Solve for x
    x = 476,654,064.87/28,811.13
  6. Step 6: Final answer
    x = 16,544.09

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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.