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Finding the Fourth Proportional to 57,818.40, 86,727.60 and 16,265.40

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Solution

The fourth proportional to 57,818.40, 86,727.60 and 16,265.40 is: 24,398.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,818.40 : 86,727.60 = 16,265.40 : x
  2. Step 2: Convert to fraction form
    57,818.40/86,727.60 = 16,265.40/x
  3. Step 3: Cross multiply
    57,818.40x = 86,727.60 × 16,265.40
  4. Step 4: Simplify right side
    57,818.40x = 1,410,659,105.04
  5. Step 5: Solve for x
    x = 1,410,659,105.04/57,818.40
  6. Step 6: Final answer
    x = 24,398.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.