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Finding the Fourth Proportional to 60,611.49, 90,917.22 and 19,058.49

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Solution

The fourth proportional to 60,611.49, 90,917.22 and 19,058.49 is: 28,587.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,611.49 : 90,917.22 = 19,058.49 : x
  2. Step 2: Convert to fraction form
    60,611.49/90,917.22 = 19,058.49/x
  3. Step 3: Cross multiply
    60,611.49x = 90,917.22 × 19,058.49
  4. Step 4: Simplify right side
    60,611.49x = 1,732,744,999.67
  5. Step 5: Solve for x
    x = 1,732,744,999.67/60,611.49
  6. Step 6: Final answer
    x = 28,587.73

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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.