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Finding the Fourth Proportional to 53,803.40, 80,744.78 and 27,174.92

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Solution

The fourth proportional to 53,803.40, 80,744.78 and 27,174.92 is: 40,782.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,803.40 : 80,744.78 = 27,174.92 : x
  2. Step 2: Convert to fraction form
    53,803.40/80,744.78 = 27,174.92/x
  3. Step 3: Cross multiply
    53,803.40x = 80,744.78 × 27,174.92
  4. Step 4: Simplify right side
    53,803.40x = 2,194,232,936.92
  5. Step 5: Solve for x
    x = 2,194,232,936.92/53,803.40
  6. Step 6: Final answer
    x = 40,782.42

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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.