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Finding the Fourth Proportional to 66,504.67, 91,778.45 and 37,828.45

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Solution

The fourth proportional to 66,504.67, 91,778.45 and 37,828.45 is: 52,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,504.67 : 91,778.45 = 37,828.45 : x
  2. Step 2: Convert to fraction form
    66,504.67/91,778.45 = 37,828.45/x
  3. Step 3: Cross multiply
    66,504.67x = 91,778.45 × 37,828.45
  4. Step 4: Simplify right side
    66,504.67x = 3,471,836,372.03
  5. Step 5: Solve for x
    x = 3,471,836,372.03/66,504.67
  6. Step 6: Final answer
    x = 52,204.40

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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.