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Finding the Fourth Proportional to 66,099.78, 91,211.67 and 37,804.86

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Solution

The fourth proportional to 66,099.78, 91,211.67 and 37,804.86 is: 52,167.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,099.78 : 91,211.67 = 37,804.86 : x
  2. Step 2: Convert to fraction form
    66,099.78/91,211.67 = 37,804.86/x
  3. Step 3: Cross multiply
    66,099.78x = 91,211.67 × 37,804.86
  4. Step 4: Simplify right side
    66,099.78x = 3,448,244,414.72
  5. Step 5: Solve for x
    x = 3,448,244,414.72/66,099.78
  6. Step 6: Final answer
    x = 52,167.26

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1.5x scale

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.