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Finding the Fourth Proportional to 51,662.73, 77,420.09 and 29,430.20

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Solution

The fourth proportional to 51,662.73, 77,420.09 and 29,430.20 is: 44,103.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,662.73 : 77,420.09 = 29,430.20 : x
  2. Step 2: Convert to fraction form
    51,662.73/77,420.09 = 29,430.20/x
  3. Step 3: Cross multiply
    51,662.73x = 77,420.09 × 29,430.20
  4. Step 4: Simplify right side
    51,662.73x = 2,278,488,732.72
  5. Step 5: Solve for x
    x = 2,278,488,732.72/51,662.73
  6. Step 6: Final answer
    x = 44,103.14

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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.