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Finding the Fourth Proportional to 53,910.65, 80,865.99 and 16,468.70

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Solution

The fourth proportional to 53,910.65, 80,865.99 and 16,468.70 is: 24,703.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,910.65 : 80,865.99 = 16,468.70 : x
  2. Step 2: Convert to fraction form
    53,910.65/80,865.99 = 16,468.70/x
  3. Step 3: Cross multiply
    53,910.65x = 80,865.99 × 16,468.70
  4. Step 4: Simplify right side
    53,910.65x = 1,331,757,729.51
  5. Step 5: Solve for x
    x = 1,331,757,729.51/53,910.65
  6. Step 6: Final answer
    x = 24,703.05

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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.