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Finding the Fourth Proportional to 37,978.62, 56,979.45 and 26,906.73

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Solution

The fourth proportional to 37,978.62, 56,979.45 and 26,906.73 is: 40,368.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,978.62 : 56,979.45 = 26,906.73 : x
  2. Step 2: Convert to fraction form
    37,978.62/56,979.45 = 26,906.73/x
  3. Step 3: Cross multiply
    37,978.62x = 56,979.45 × 26,906.73
  4. Step 4: Simplify right side
    37,978.62x = 1,533,130,676.70
  5. Step 5: Solve for x
    x = 1,533,130,676.70/37,978.62
  6. Step 6: Final answer
    x = 40,368.26

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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.