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Finding the Fourth Proportional to 53,351.87, 73,621.71 and 29,478.94

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Solution

The fourth proportional to 53,351.87, 73,621.71 and 29,478.94 is: 40,678.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,351.87 : 73,621.71 = 29,478.94 : x
  2. Step 2: Convert to fraction form
    53,351.87/73,621.71 = 29,478.94/x
  3. Step 3: Cross multiply
    53,351.87x = 73,621.71 × 29,478.94
  4. Step 4: Simplify right side
    53,351.87x = 2,170,289,787.73
  5. Step 5: Solve for x
    x = 2,170,289,787.73/53,351.87
  6. Step 6: Final answer
    x = 40,678.80

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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.