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Finding the Fourth Proportional to 66,095.73, 91,211.82 and 35,880.81

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Solution

The fourth proportional to 66,095.73, 91,211.82 and 35,880.81 is: 49,515.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,095.73 : 91,211.82 = 35,880.81 : x
  2. Step 2: Convert to fraction form
    66,095.73/91,211.82 = 35,880.81/x
  3. Step 3: Cross multiply
    66,095.73x = 91,211.82 × 35,880.81
  4. Step 4: Simplify right side
    66,095.73x = 3,272,753,983.17
  5. Step 5: Solve for x
    x = 3,272,753,983.17/66,095.73
  6. Step 6: Final answer
    x = 49,515.36

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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.