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Finding the Fourth Proportional to 45,212.48, 67,796.84 and 15,619.94

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Solution

The fourth proportional to 45,212.48, 67,796.84 and 15,619.94 is: 23,422.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,212.48 : 67,796.84 = 15,619.94 : x
  2. Step 2: Convert to fraction form
    45,212.48/67,796.84 = 15,619.94/x
  3. Step 3: Cross multiply
    45,212.48x = 67,796.84 × 15,619.94
  4. Step 4: Simplify right side
    45,212.48x = 1,058,982,572.99
  5. Step 5: Solve for x
    x = 1,058,982,572.99/45,212.48
  6. Step 6: Final answer
    x = 23,422.35

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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.