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Finding the Fourth Proportional to 31,795.80, 47,693.70 and 27,418.20

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Solution

The fourth proportional to 31,795.80, 47,693.70 and 27,418.20 is: 41,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,795.80 : 47,693.70 = 27,418.20 : x
  2. Step 2: Convert to fraction form
    31,795.80/47,693.70 = 27,418.20/x
  3. Step 3: Cross multiply
    31,795.80x = 47,693.70 × 27,418.20
  4. Step 4: Simplify right side
    31,795.80x = 1,307,675,405.34
  5. Step 5: Solve for x
    x = 1,307,675,405.34/31,795.80
  6. Step 6: Final answer
    x = 41,127.30

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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.