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Finding the Fourth Proportional to 53,351.91, 80,033.18 and 15,905.34

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Solution

The fourth proportional to 53,351.91, 80,033.18 and 15,905.34 is: 23,859.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,351.91 : 80,033.18 = 15,905.34 : x
  2. Step 2: Convert to fraction form
    53,351.91/80,033.18 = 15,905.34/x
  3. Step 3: Cross multiply
    53,351.91x = 80,033.18 × 15,905.34
  4. Step 4: Simplify right side
    53,351.91x = 1,272,954,859.65
  5. Step 5: Solve for x
    x = 1,272,954,859.65/53,351.91
  6. Step 6: Final answer
    x = 23,859.59

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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.