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Finding the Fourth Proportional to 48,780.70, 73,134.60 and 26,619.10

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Solution

The fourth proportional to 48,780.70, 73,134.60 and 26,619.10 is: 39,908.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,780.70 : 73,134.60 = 26,619.10 : x
  2. Step 2: Convert to fraction form
    48,780.70/73,134.60 = 26,619.10/x
  3. Step 3: Cross multiply
    48,780.70x = 73,134.60 × 26,619.10
  4. Step 4: Simplify right side
    48,780.70x = 1,946,777,230.86
  5. Step 5: Solve for x
    x = 1,946,777,230.86/48,780.70
  6. Step 6: Final answer
    x = 39,908.76

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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.