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Finding the Fourth Proportional to 37,939.35, 56,910.06 and 9,858.78

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Solution

The fourth proportional to 37,939.35, 56,910.06 and 9,858.78 is: 14,788.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,939.35 : 56,910.06 = 9,858.78 : x
  2. Step 2: Convert to fraction form
    37,939.35/56,910.06 = 9,858.78/x
  3. Step 3: Cross multiply
    37,939.35x = 56,910.06 × 9,858.78
  4. Step 4: Simplify right side
    37,939.35x = 561,063,761.33
  5. Step 5: Solve for x
    x = 561,063,761.33/37,939.35
  6. Step 6: Final answer
    x = 14,788.44

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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.