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Finding the Fourth Proportional to 66,418.02, 91,659.21 and 37,737.27

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Solution

The fourth proportional to 66,418.02, 91,659.21 and 37,737.27 is: 52,078.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,418.02 : 91,659.21 = 37,737.27 : x
  2. Step 2: Convert to fraction form
    66,418.02/91,659.21 = 37,737.27/x
  3. Step 3: Cross multiply
    66,418.02x = 91,659.21 × 37,737.27
  4. Step 4: Simplify right side
    66,418.02x = 3,458,968,355.76
  5. Step 5: Solve for x
    x = 3,458,968,355.76/66,418.02
  6. Step 6: Final answer
    x = 52,078.76

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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.