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Finding the Fourth Proportional to 26,336.60, 39,408.90 and 19,424.60

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Solution

The fourth proportional to 26,336.60, 39,408.90 and 19,424.60 is: 29,066.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,336.60 : 39,408.90 = 19,424.60 : x
  2. Step 2: Convert to fraction form
    26,336.60/39,408.90 = 19,424.60/x
  3. Step 3: Cross multiply
    26,336.60x = 39,408.90 × 19,424.60
  4. Step 4: Simplify right side
    26,336.60x = 765,502,118.94
  5. Step 5: Solve for x
    x = 765,502,118.94/26,336.60
  6. Step 6: Final answer
    x = 29,066.10

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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.