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Finding the Fourth Proportional to 75,761.75, 113,643.19 and 33,630.51

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Solution

The fourth proportional to 75,761.75, 113,643.19 and 33,630.51 is: 50,446.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,761.75 : 113,643.19 = 33,630.51 : x
  2. Step 2: Convert to fraction form
    75,761.75/113,643.19 = 33,630.51/x
  3. Step 3: Cross multiply
    75,761.75x = 113,643.19 × 33,630.51
  4. Step 4: Simplify right side
    75,761.75x = 3,821,878,437.73
  5. Step 5: Solve for x
    x = 3,821,878,437.73/75,761.75
  6. Step 6: Final answer
    x = 50,446.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.