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Finding the Fourth Proportional to 37,380.28, 56,060.87 and 11,078.87

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Solution

The fourth proportional to 37,380.28, 56,060.87 and 11,078.87 is: 16,615.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,380.28 : 56,060.87 = 11,078.87 : x
  2. Step 2: Convert to fraction form
    37,380.28/56,060.87 = 11,078.87/x
  3. Step 3: Cross multiply
    37,380.28x = 56,060.87 × 11,078.87
  4. Step 4: Simplify right side
    37,380.28x = 621,091,090.82
  5. Step 5: Solve for x
    x = 621,091,090.82/37,380.28
  6. Step 6: Final answer
    x = 16,615.47

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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.