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Finding the Fourth Proportional to 35,103.78, 48,440.50 and 19,993.43

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Solution

The fourth proportional to 35,103.78, 48,440.50 and 19,993.43 is: 27,589.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,103.78 : 48,440.50 = 19,993.43 : x
  2. Step 2: Convert to fraction form
    35,103.78/48,440.50 = 19,993.43/x
  3. Step 3: Cross multiply
    35,103.78x = 48,440.50 × 19,993.43
  4. Step 4: Simplify right side
    35,103.78x = 968,491,817.03
  5. Step 5: Solve for x
    x = 968,491,817.03/35,103.78
  6. Step 6: Final answer
    x = 27,589.39

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.