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Finding the Fourth Proportional to 70,665.60, 105,932.52 and 23,885.76

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Solution

The fourth proportional to 70,665.60, 105,932.52 and 23,885.76 is: 35,806.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,665.60 : 105,932.52 = 23,885.76 : x
  2. Step 2: Convert to fraction form
    70,665.60/105,932.52 = 23,885.76/x
  3. Step 3: Cross multiply
    70,665.60x = 105,932.52 × 23,885.76
  4. Step 4: Simplify right side
    70,665.60x = 2,530,278,748.92
  5. Step 5: Solve for x
    x = 2,530,278,748.92/70,665.60
  6. Step 6: Final answer
    x = 35,806.37

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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.