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Finding the Fourth Proportional to 28,177.77, 38,885.37 and 15,257.18

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Solution

The fourth proportional to 28,177.77, 38,885.37 and 15,257.18 is: 21,054.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,177.77 : 38,885.37 = 15,257.18 : x
  2. Step 2: Convert to fraction form
    28,177.77/38,885.37 = 15,257.18/x
  3. Step 3: Cross multiply
    28,177.77x = 38,885.37 × 15,257.18
  4. Step 4: Simplify right side
    28,177.77x = 593,280,910.73
  5. Step 5: Solve for x
    x = 593,280,910.73/28,177.77
  6. Step 6: Final answer
    x = 21,054.93

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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.