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Finding the Fourth Proportional to 35,249.52, 48,643.14 and 20,917.86

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Solution

The fourth proportional to 35,249.52, 48,643.14 and 20,917.86 is: 28,865.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,249.52 : 48,643.14 = 20,917.86 : x
  2. Step 2: Convert to fraction form
    35,249.52/48,643.14 = 20,917.86/x
  3. Step 3: Cross multiply
    35,249.52x = 48,643.14 × 20,917.86
  4. Step 4: Simplify right side
    35,249.52x = 1,017,510,392.48
  5. Step 5: Solve for x
    x = 1,017,510,392.48/35,249.52
  6. Step 6: Final answer
    x = 28,865.94

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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.