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Finding the Fourth Proportional to 35,137.60, 48,489.49 and 19,221.86

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Solution

The fourth proportional to 35,137.60, 48,489.49 and 19,221.86 is: 26,525.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,137.60 : 48,489.49 = 19,221.86 : x
  2. Step 2: Convert to fraction form
    35,137.60/48,489.49 = 19,221.86/x
  3. Step 3: Cross multiply
    35,137.60x = 48,489.49 × 19,221.86
  4. Step 4: Simplify right side
    35,137.60x = 932,058,188.25
  5. Step 5: Solve for x
    x = 932,058,188.25/35,137.60
  6. Step 6: Final answer
    x = 26,525.95

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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.