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Finding the Fourth Proportional to 51,803.82, 71,489.56 and 30,593.56

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Solution

The fourth proportional to 51,803.82, 71,489.56 and 30,593.56 is: 42,219.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,803.82 : 71,489.56 = 30,593.56 : x
  2. Step 2: Convert to fraction form
    51,803.82/71,489.56 = 30,593.56/x
  3. Step 3: Cross multiply
    51,803.82x = 71,489.56 × 30,593.56
  4. Step 4: Simplify right side
    51,803.82x = 2,187,120,143.23
  5. Step 5: Solve for x
    x = 2,187,120,143.23/51,803.82
  6. Step 6: Final answer
    x = 42,219.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.