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Finding the Fourth Proportional to 28,682.76, 39,585.60 and 16,107.48

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Solution

The fourth proportional to 28,682.76, 39,585.60 and 16,107.48 is: 22,230.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,682.76 : 39,585.60 = 16,107.48 : x
  2. Step 2: Convert to fraction form
    28,682.76/39,585.60 = 16,107.48/x
  3. Step 3: Cross multiply
    28,682.76x = 39,585.60 × 16,107.48
  4. Step 4: Simplify right side
    28,682.76x = 637,624,260.29
  5. Step 5: Solve for x
    x = 637,624,260.29/28,682.76
  6. Step 6: Final answer
    x = 22,230.23

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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.