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Finding the Fourth Proportional to 53,859.18, 80,801.76 and 16,923.18

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Solution

The fourth proportional to 53,859.18, 80,801.76 and 16,923.18 is: 25,388.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,859.18 : 80,801.76 = 16,923.18 : x
  2. Step 2: Convert to fraction form
    53,859.18/80,801.76 = 16,923.18/x
  3. Step 3: Cross multiply
    53,859.18x = 80,801.76 × 16,923.18
  4. Step 4: Simplify right side
    53,859.18x = 1,367,422,728.80
  5. Step 5: Solve for x
    x = 1,367,422,728.80/53,859.18
  6. Step 6: Final answer
    x = 25,388.85

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1.5x scale

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.