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Finding the Fourth Proportional to 60,174.34, 90,275.93 and 18,621.34

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Solution

The fourth proportional to 60,174.34, 90,275.93 and 18,621.34 is: 27,936.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,174.34 : 90,275.93 = 18,621.34 : x
  2. Step 2: Convert to fraction form
    60,174.34/90,275.93 = 18,621.34/x
  3. Step 3: Cross multiply
    60,174.34x = 90,275.93 × 18,621.34
  4. Step 4: Simplify right side
    60,174.34x = 1,681,058,786.35
  5. Step 5: Solve for x
    x = 1,681,058,786.35/60,174.34
  6. Step 6: Final answer
    x = 27,936.47

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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.