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Finding the Fourth Proportional to 66,041.57, 91,137.36 and 37,747.86

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Solution

The fourth proportional to 66,041.57, 91,137.36 and 37,747.86 is: 52,092.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,041.57 : 91,137.36 = 37,747.86 : x
  2. Step 2: Convert to fraction form
    66,041.57/91,137.36 = 37,747.86/x
  3. Step 3: Cross multiply
    66,041.57x = 91,137.36 × 37,747.86
  4. Step 4: Simplify right side
    66,041.57x = 3,440,240,467.16
  5. Step 5: Solve for x
    x = 3,440,240,467.16/66,041.57
  6. Step 6: Final answer
    x = 52,092.05

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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.