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Finding the Fourth Proportional to 66,823.71, 92,219.49 and 36,611.66

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Solution

The fourth proportional to 66,823.71, 92,219.49 and 36,611.66 is: 50,525.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,823.71 : 92,219.49 = 36,611.66 : x
  2. Step 2: Convert to fraction form
    66,823.71/92,219.49 = 36,611.66/x
  3. Step 3: Cross multiply
    66,823.71x = 92,219.49 × 36,611.66
  4. Step 4: Simplify right side
    66,823.71x = 3,376,308,152.16
  5. Step 5: Solve for x
    x = 3,376,308,152.16/66,823.71
  6. Step 6: Final answer
    x = 50,525.60

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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.