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Finding the Fourth Proportional to 17,399.82, 26,101.44 and 4,919.94

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Solution

The fourth proportional to 17,399.82, 26,101.44 and 4,919.94 is: 7,380.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,399.82 : 26,101.44 = 4,919.94 : x
  2. Step 2: Convert to fraction form
    17,399.82/26,101.44 = 4,919.94/x
  3. Step 3: Cross multiply
    17,399.82x = 26,101.44 × 4,919.94
  4. Step 4: Simplify right side
    17,399.82x = 128,417,518.71
  5. Step 5: Solve for x
    x = 128,417,518.71/17,399.82
  6. Step 6: Final answer
    x = 7,380.39

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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.