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Finding the Fourth Proportional to 59,387.60, 81,961.80 and 34,238

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Solution

The fourth proportional to 59,387.60, 81,961.80 and 34,238 is: 47,252.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,387.60 : 81,961.80 = 34,238 : x
  2. Step 2: Convert to fraction form
    59,387.60/81,961.80 = 34,238/x
  3. Step 3: Cross multiply
    59,387.60x = 81,961.80 × 34,238
  4. Step 4: Simplify right side
    59,387.60x = 2,806,208,108.40
  5. Step 5: Solve for x
    x = 2,806,208,108.40/59,387.60
  6. Step 6: Final answer
    x = 47,252.42

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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.