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Finding the Fourth Proportional to 66,782.62, 92,155.94 and 36,568.30

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Solution

The fourth proportional to 66,782.62, 92,155.94 and 36,568.30 is: 50,462.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,782.62 : 92,155.94 = 36,568.30 : x
  2. Step 2: Convert to fraction form
    66,782.62/92,155.94 = 36,568.30/x
  3. Step 3: Cross multiply
    66,782.62x = 92,155.94 × 36,568.30
  4. Step 4: Simplify right side
    66,782.62x = 3,369,986,060.70
  5. Step 5: Solve for x
    x = 3,369,986,060.70/66,782.62
  6. Step 6: Final answer
    x = 50,462.02

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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.