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Finding the Fourth Proportional to 37,142.40, 55,843.20 and 36,364.80

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Solution

The fourth proportional to 37,142.40, 55,843.20 and 36,364.80 is: 54,674.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,142.40 : 55,843.20 = 36,364.80 : x
  2. Step 2: Convert to fraction form
    37,142.40/55,843.20 = 36,364.80/x
  3. Step 3: Cross multiply
    37,142.40x = 55,843.20 × 36,364.80
  4. Step 4: Simplify right side
    37,142.40x = 2,030,726,799.36
  5. Step 5: Solve for x
    x = 2,030,726,799.36/37,142.40
  6. Step 6: Final answer
    x = 54,674.09

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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.