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Finding the Fourth Proportional to 69,005.54, 103,530.20 and 24,631.31

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Solution

The fourth proportional to 69,005.54, 103,530.20 and 24,631.31 is: 36,954.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,005.54 : 103,530.20 = 24,631.31 : x
  2. Step 2: Convert to fraction form
    69,005.54/103,530.20 = 24,631.31/x
  3. Step 3: Cross multiply
    69,005.54x = 103,530.20 × 24,631.31
  4. Step 4: Simplify right side
    69,005.54x = 2,550,084,586.23
  5. Step 5: Solve for x
    x = 2,550,084,586.23/69,005.54
  6. Step 6: Final answer
    x = 36,954.78

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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.