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Finding the Fourth Proportional to 69,818.64, 96,351.78 and 37,989.60

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Solution

The fourth proportional to 69,818.64, 96,351.78 and 37,989.60 is: 52,426.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,818.64 : 96,351.78 = 37,989.60 : x
  2. Step 2: Convert to fraction form
    69,818.64/96,351.78 = 37,989.60/x
  3. Step 3: Cross multiply
    69,818.64x = 96,351.78 × 37,989.60
  4. Step 4: Simplify right side
    69,818.64x = 3,660,365,099.73
  5. Step 5: Solve for x
    x = 3,660,365,099.73/69,818.64
  6. Step 6: Final answer
    x = 52,426.76

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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.