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Finding the Fourth Proportional to 35,419.77, 48,868.22 and 20,103.77

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Solution

The fourth proportional to 35,419.77, 48,868.22 and 20,103.77 is: 27,736.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,419.77 : 48,868.22 = 20,103.77 : x
  2. Step 2: Convert to fraction form
    35,419.77/48,868.22 = 20,103.77/x
  3. Step 3: Cross multiply
    35,419.77x = 48,868.22 × 20,103.77
  4. Step 4: Simplify right side
    35,419.77x = 982,435,627.62
  5. Step 5: Solve for x
    x = 982,435,627.62/35,419.77
  6. Step 6: Final answer
    x = 27,736.93

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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.