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Finding the Fourth Proportional to 86,351.82, 129,494.97 and 33,754.74

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Solution

The fourth proportional to 86,351.82, 129,494.97 and 33,754.74 is: 50,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,351.82 : 129,494.97 = 33,754.74 : x
  2. Step 2: Convert to fraction form
    86,351.82/129,494.97 = 33,754.74/x
  3. Step 3: Cross multiply
    86,351.82x = 129,494.97 × 33,754.74
  4. Step 4: Simplify right side
    86,351.82x = 4,371,069,043.66
  5. Step 5: Solve for x
    x = 4,371,069,043.66/86,351.82
  6. Step 6: Final answer
    x = 50,619.30

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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.