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Finding the Fourth Proportional to 35,129.54, 48,480.54 and 20,797.60

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Solution

The fourth proportional to 35,129.54, 48,480.54 and 20,797.60 is: 28,701.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,129.54 : 48,480.54 = 20,797.60 : x
  2. Step 2: Convert to fraction form
    35,129.54/48,480.54 = 20,797.60/x
  3. Step 3: Cross multiply
    35,129.54x = 48,480.54 × 20,797.60
  4. Step 4: Simplify right side
    35,129.54x = 1,008,278,878.70
  5. Step 5: Solve for x
    x = 1,008,278,878.70/35,129.54
  6. Step 6: Final answer
    x = 28,701.74

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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.