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Finding the Fourth Proportional to 28,616.08, 39,483.76 and 17,287.44

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Solution

The fourth proportional to 28,616.08, 39,483.76 and 17,287.44 is: 23,852.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,616.08 : 39,483.76 = 17,287.44 : x
  2. Step 2: Convert to fraction form
    28,616.08/39,483.76 = 17,287.44/x
  3. Step 3: Cross multiply
    28,616.08x = 39,483.76 × 17,287.44
  4. Step 4: Simplify right side
    28,616.08x = 682,573,131.97
  5. Step 5: Solve for x
    x = 682,573,131.97/28,616.08
  6. Step 6: Final answer
    x = 23,852.78

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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.