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Finding the Fourth Proportional to 70,012.40, 104,976.30 and 27,898.96

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Solution

The fourth proportional to 70,012.40, 104,976.30 and 27,898.96 is: 41,831.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,012.40 : 104,976.30 = 27,898.96 : x
  2. Step 2: Convert to fraction form
    70,012.40/104,976.30 = 27,898.96/x
  3. Step 3: Cross multiply
    70,012.40x = 104,976.30 × 27,898.96
  4. Step 4: Simplify right side
    70,012.40x = 2,928,729,594.65
  5. Step 5: Solve for x
    x = 2,928,729,594.65/70,012.40
  6. Step 6: Final answer
    x = 41,831.58

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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.