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Finding the Fourth Proportional to 66,264.63, 91,443.11 and 36,049.19

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Solution

The fourth proportional to 66,264.63, 91,443.11 and 36,049.19 is: 49,746.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,264.63 : 91,443.11 = 36,049.19 : x
  2. Step 2: Convert to fraction form
    66,264.63/91,443.11 = 36,049.19/x
  3. Step 3: Cross multiply
    66,264.63x = 91,443.11 × 36,049.19
  4. Step 4: Simplify right side
    66,264.63x = 3,296,449,611.90
  5. Step 5: Solve for x
    x = 3,296,449,611.90/66,264.63
  6. Step 6: Final answer
    x = 49,746.74

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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.