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Finding the Fourth Proportional to 16,991.92, 25,335.50 and 16,341.76

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Solution

The fourth proportional to 16,991.92, 25,335.50 and 16,341.76 is: 24,366.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.92 : 25,335.50 = 16,341.76 : x
  2. Step 2: Convert to fraction form
    16,991.92/25,335.50 = 16,341.76/x
  3. Step 3: Cross multiply
    16,991.92x = 25,335.50 × 16,341.76
  4. Step 4: Simplify right side
    16,991.92x = 414,026,660.48
  5. Step 5: Solve for x
    x = 414,026,660.48/16,991.92
  6. Step 6: Final answer
    x = 24,366.09

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.