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Finding the Fourth Proportional to 70,026.57, 104,990.65 and 25,647.56

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Solution

The fourth proportional to 70,026.57, 104,990.65 and 25,647.56 is: 38,453.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,026.57 : 104,990.65 = 25,647.56 : x
  2. Step 2: Convert to fraction form
    70,026.57/104,990.65 = 25,647.56/x
  3. Step 3: Cross multiply
    70,026.57x = 104,990.65 × 25,647.56
  4. Step 4: Simplify right side
    70,026.57x = 2,692,753,342.12
  5. Step 5: Solve for x
    x = 2,692,753,342.12/70,026.57
  6. Step 6: Final answer
    x = 38,453.31

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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.