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Finding the Fourth Proportional to 66,497.80, 91,767.06 and 36,283.26

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Solution

The fourth proportional to 66,497.80, 91,767.06 and 36,283.26 is: 50,070.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,497.80 : 91,767.06 = 36,283.26 : x
  2. Step 2: Convert to fraction form
    66,497.80/91,767.06 = 36,283.26/x
  3. Step 3: Cross multiply
    66,497.80x = 91,767.06 × 36,283.26
  4. Step 4: Simplify right side
    66,497.80x = 3,329,608,097.42
  5. Step 5: Solve for x
    x = 3,329,608,097.42/66,497.80
  6. Step 6: Final answer
    x = 50,070.95

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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.