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Finding the Fourth Proportional to 57,891.15, 86,824.58 and 16,328.43

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Solution

The fourth proportional to 57,891.15, 86,824.58 and 16,328.43 is: 24,489.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,891.15 : 86,824.58 = 16,328.43 : x
  2. Step 2: Convert to fraction form
    57,891.15/86,824.58 = 16,328.43/x
  3. Step 3: Cross multiply
    57,891.15x = 86,824.58 × 16,328.43
  4. Step 4: Simplify right side
    57,891.15x = 1,417,708,995.17
  5. Step 5: Solve for x
    x = 1,417,708,995.17/57,891.15
  6. Step 6: Final answer
    x = 24,489.22

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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.