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Finding the Fourth Proportional to 53,898.65, 80,859.80 and 15,944.95

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Solution

The fourth proportional to 53,898.65, 80,859.80 and 15,944.95 is: 23,920.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,898.65 : 80,859.80 = 15,944.95 : x
  2. Step 2: Convert to fraction form
    53,898.65/80,859.80 = 15,944.95/x
  3. Step 3: Cross multiply
    53,898.65x = 80,859.80 × 15,944.95
  4. Step 4: Simplify right side
    53,898.65x = 1,289,305,063.71
  5. Step 5: Solve for x
    x = 1,289,305,063.71/53,898.65
  6. Step 6: Final answer
    x = 23,920.92

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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.