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Finding the Fourth Proportional to 51,276.34, 70,764.03 and 30,062.42

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Solution

The fourth proportional to 51,276.34, 70,764.03 and 30,062.42 is: 41,487.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,276.34 : 70,764.03 = 30,062.42 : x
  2. Step 2: Convert to fraction form
    51,276.34/70,764.03 = 30,062.42/x
  3. Step 3: Cross multiply
    51,276.34x = 70,764.03 × 30,062.42
  4. Step 4: Simplify right side
    51,276.34x = 2,127,337,990.75
  5. Step 5: Solve for x
    x = 2,127,337,990.75/51,276.34
  6. Step 6: Final answer
    x = 41,487.71

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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.