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Finding the Fourth Proportional to 38,782.49, 58,173.73 and 11,080.49

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Solution

The fourth proportional to 38,782.49, 58,173.73 and 11,080.49 is: 16,620.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,782.49 : 58,173.73 = 11,080.49 : x
  2. Step 2: Convert to fraction form
    38,782.49/58,173.73 = 11,080.49/x
  3. Step 3: Cross multiply
    38,782.49x = 58,173.73 × 11,080.49
  4. Step 4: Simplify right side
    38,782.49x = 644,593,433.53
  5. Step 5: Solve for x
    x = 644,593,433.53/38,782.49
  6. Step 6: Final answer
    x = 16,620.73

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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.