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Finding the Fourth Proportional to 37,773.80, 56,660.70 and 31,092.20

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Solution

The fourth proportional to 37,773.80, 56,660.70 and 31,092.20 is: 46,638.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,773.80 : 56,660.70 = 31,092.20 : x
  2. Step 2: Convert to fraction form
    37,773.80/56,660.70 = 31,092.20/x
  3. Step 3: Cross multiply
    37,773.80x = 56,660.70 × 31,092.20
  4. Step 4: Simplify right side
    37,773.80x = 1,761,705,816.54
  5. Step 5: Solve for x
    x = 1,761,705,816.54/37,773.80
  6. Step 6: Final answer
    x = 46,638.30

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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.