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Finding the Fourth Proportional to 66,761.21, 92,173.47 and 59,578.82

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Solution

The fourth proportional to 66,761.21, 92,173.47 and 59,578.82 is: 82,257.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,761.21 : 92,173.47 = 59,578.82 : x
  2. Step 2: Convert to fraction form
    66,761.21/92,173.47 = 59,578.82/x
  3. Step 3: Cross multiply
    66,761.21x = 92,173.47 × 59,578.82
  4. Step 4: Simplify right side
    66,761.21x = 5,491,586,147.60
  5. Step 5: Solve for x
    x = 5,491,586,147.60/66,761.21
  6. Step 6: Final answer
    x = 82,257.14

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1.5x scale

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.