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Finding the Fourth Proportional to 66,591.88, 99,891.18 and 22,216.84

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Solution

The fourth proportional to 66,591.88, 99,891.18 and 22,216.84 is: 33,326.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,591.88 : 99,891.18 = 22,216.84 : x
  2. Step 2: Convert to fraction form
    66,591.88/99,891.18 = 22,216.84/x
  3. Step 3: Cross multiply
    66,591.88x = 99,891.18 × 22,216.84
  4. Step 4: Simplify right side
    66,591.88x = 2,219,266,363.47
  5. Step 5: Solve for x
    x = 2,219,266,363.47/66,591.88
  6. Step 6: Final answer
    x = 33,326.38

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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.