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Finding the Fourth Proportional to 66,496.76, 91,766.86 and 36,283.36

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Solution

The fourth proportional to 66,496.76, 91,766.86 and 36,283.36 is: 50,071.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,496.76 : 91,766.86 = 36,283.36 : x
  2. Step 2: Convert to fraction form
    66,496.76/91,766.86 = 36,283.36/x
  3. Step 3: Cross multiply
    66,496.76x = 91,766.86 × 36,283.36
  4. Step 4: Simplify right side
    66,496.76x = 3,329,609,635.32
  5. Step 5: Solve for x
    x = 3,329,609,635.32/66,496.76
  6. Step 6: Final answer
    x = 50,071.76

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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.