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Finding the Fourth Proportional to 70,648.98, 105,957.03 and 26,296.62

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Solution

The fourth proportional to 70,648.98, 105,957.03 and 26,296.62 is: 39,438.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,648.98 : 105,957.03 = 26,296.62 : x
  2. Step 2: Convert to fraction form
    70,648.98/105,957.03 = 26,296.62/x
  3. Step 3: Cross multiply
    70,648.98x = 105,957.03 × 26,296.62
  4. Step 4: Simplify right side
    70,648.98x = 2,786,311,754.24
  5. Step 5: Solve for x
    x = 2,786,311,754.24/70,648.98
  6. Step 6: Final answer
    x = 39,438.81

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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.