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Finding the Fourth Proportional to 37,790.40, 56,728.80 and 22,216.80

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Solution

The fourth proportional to 37,790.40, 56,728.80 and 22,216.80 is: 33,350.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,790.40 : 56,728.80 = 22,216.80 : x
  2. Step 2: Convert to fraction form
    37,790.40/56,728.80 = 22,216.80/x
  3. Step 3: Cross multiply
    37,790.40x = 56,728.80 × 22,216.80
  4. Step 4: Simplify right side
    37,790.40x = 1,260,332,403.84
  5. Step 5: Solve for x
    x = 1,260,332,403.84/37,790.40
  6. Step 6: Final answer
    x = 33,350.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.