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Finding the Fourth Proportional to 66,005.73, 91,092.74 and 37,710.81

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Solution

The fourth proportional to 66,005.73, 91,092.74 and 37,710.81 is: 52,043.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,005.73 : 91,092.74 = 37,710.81 : x
  2. Step 2: Convert to fraction form
    66,005.73/91,092.74 = 37,710.81/x
  3. Step 3: Cross multiply
    66,005.73x = 91,092.74 × 37,710.81
  4. Step 4: Simplify right side
    66,005.73x = 3,435,180,821.97
  5. Step 5: Solve for x
    x = 3,435,180,821.97/66,005.73
  6. Step 6: Final answer
    x = 52,043.68

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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.