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Finding the Fourth Proportional to 66,552.95, 91,840.43 and 36,339.54

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Solution

The fourth proportional to 66,552.95, 91,840.43 and 36,339.54 is: 50,147.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,552.95 : 91,840.43 = 36,339.54 : x
  2. Step 2: Convert to fraction form
    66,552.95/91,840.43 = 36,339.54/x
  3. Step 3: Cross multiply
    66,552.95x = 91,840.43 × 36,339.54
  4. Step 4: Simplify right side
    66,552.95x = 3,337,438,979.60
  5. Step 5: Solve for x
    x = 3,337,438,979.60/66,552.95
  6. Step 6: Final answer
    x = 50,147.12

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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.