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Finding the Fourth Proportional to 15,994.74, 22,078.77 and 13,747.59

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Solution

The fourth proportional to 15,994.74, 22,078.77 and 13,747.59 is: 18,976.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,994.74 : 22,078.77 = 13,747.59 : x
  2. Step 2: Convert to fraction form
    15,994.74/22,078.77 = 13,747.59/x
  3. Step 3: Cross multiply
    15,994.74x = 22,078.77 × 13,747.59
  4. Step 4: Simplify right side
    15,994.74x = 303,529,877.66
  5. Step 5: Solve for x
    x = 303,529,877.66/15,994.74
  6. Step 6: Final answer
    x = 18,976.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.