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Finding the Fourth Proportional to 53,258.70, 79,943.52 and 39,234.62

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Solution

The fourth proportional to 53,258.70, 79,943.52 and 39,234.62 is: 58,892.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,258.70 : 79,943.52 = 39,234.62 : x
  2. Step 2: Convert to fraction form
    53,258.70/79,943.52 = 39,234.62/x
  3. Step 3: Cross multiply
    53,258.70x = 79,943.52 × 39,234.62
  4. Step 4: Simplify right side
    53,258.70x = 3,136,553,628.66
  5. Step 5: Solve for x
    x = 3,136,553,628.66/53,258.70
  6. Step 6: Final answer
    x = 58,892.79

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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.