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Finding the Fourth Proportional to 66,784.22, 92,164.31 and 36,572.41

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Solution

The fourth proportional to 66,784.22, 92,164.31 and 36,572.41 is: 50,471.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,784.22 : 92,164.31 = 36,572.41 : x
  2. Step 2: Convert to fraction form
    66,784.22/92,164.31 = 36,572.41/x
  3. Step 3: Cross multiply
    66,784.22x = 92,164.31 × 36,572.41
  4. Step 4: Simplify right side
    66,784.22x = 3,370,670,932.69
  5. Step 5: Solve for x
    x = 3,370,670,932.69/66,784.22
  6. Step 6: Final answer
    x = 50,471.07

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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.