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Finding the Fourth Proportional to 17,896.51, 26,845.02 and 5,416.65

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Solution

The fourth proportional to 17,896.51, 26,845.02 and 5,416.65 is: 8,125.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,896.51 : 26,845.02 = 5,416.65 : x
  2. Step 2: Convert to fraction form
    17,896.51/26,845.02 = 5,416.65/x
  3. Step 3: Cross multiply
    17,896.51x = 26,845.02 × 5,416.65
  4. Step 4: Simplify right side
    17,896.51x = 145,410,077.58
  5. Step 5: Solve for x
    x = 145,410,077.58/17,896.51
  6. Step 6: Final answer
    x = 8,125.05

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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.