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Finding the Fourth Proportional to 48,812.80, 73,317.48 and 47,434.72

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Solution

The fourth proportional to 48,812.80, 73,317.48 and 47,434.72 is: 71,247.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,812.80 : 73,317.48 = 47,434.72 : x
  2. Step 2: Convert to fraction form
    48,812.80/73,317.48 = 47,434.72/x
  3. Step 3: Cross multiply
    48,812.80x = 73,317.48 × 47,434.72
  4. Step 4: Simplify right side
    48,812.80x = 3,477,794,134.91
  5. Step 5: Solve for x
    x = 3,477,794,134.91/48,812.80
  6. Step 6: Final answer
    x = 71,247.59

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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.