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Finding the Fourth Proportional to 37,439.88, 56,178.38 and 20,799.88

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Solution

The fourth proportional to 37,439.88, 56,178.38 and 20,799.88 is: 31,210.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,439.88 : 56,178.38 = 20,799.88 : x
  2. Step 2: Convert to fraction form
    37,439.88/56,178.38 = 20,799.88/x
  3. Step 3: Cross multiply
    37,439.88x = 56,178.38 × 20,799.88
  4. Step 4: Simplify right side
    37,439.88x = 1,168,503,562.59
  5. Step 5: Solve for x
    x = 1,168,503,562.59/37,439.88
  6. Step 6: Final answer
    x = 31,210.13

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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.