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Finding the Fourth Proportional to 37,711.80, 56,583.90 and 19,243.80

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Solution

The fourth proportional to 37,711.80, 56,583.90 and 19,243.80 is: 28,873.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,711.80 : 56,583.90 = 19,243.80 : x
  2. Step 2: Convert to fraction form
    37,711.80/56,583.90 = 19,243.80/x
  3. Step 3: Cross multiply
    37,711.80x = 56,583.90 × 19,243.80
  4. Step 4: Simplify right side
    37,711.80x = 1,088,889,254.82
  5. Step 5: Solve for x
    x = 1,088,889,254.82/37,711.80
  6. Step 6: Final answer
    x = 28,873.97

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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.