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Finding the Fourth Proportional to 57,912.48, 86,872.08 and 16,356

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Solution

The fourth proportional to 57,912.48, 86,872.08 and 16,356 is: 24,534.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,912.48 : 86,872.08 = 16,356 : x
  2. Step 2: Convert to fraction form
    57,912.48/86,872.08 = 16,356/x
  3. Step 3: Cross multiply
    57,912.48x = 86,872.08 × 16,356
  4. Step 4: Simplify right side
    57,912.48x = 1,420,879,740.48
  5. Step 5: Solve for x
    x = 1,420,879,740.48/57,912.48
  6. Step 6: Final answer
    x = 24,534.95

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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.