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Finding the Fourth Proportional to 66,686.50, 92,023.97 and 36,465.95

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Solution

The fourth proportional to 66,686.50, 92,023.97 and 36,465.95 is: 50,321.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,686.50 : 92,023.97 = 36,465.95 : x
  2. Step 2: Convert to fraction form
    66,686.50/92,023.97 = 36,465.95/x
  3. Step 3: Cross multiply
    66,686.50x = 92,023.97 × 36,465.95
  4. Step 4: Simplify right side
    66,686.50x = 3,355,741,536.55
  5. Step 5: Solve for x
    x = 3,355,741,536.55/66,686.50
  6. Step 6: Final answer
    x = 50,321.15

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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.