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Finding the Fourth Proportional to 50,593.66, 75,910.20 and 21,004

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Solution

The fourth proportional to 50,593.66, 75,910.20 and 21,004 is: 31,514.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,593.66 : 75,910.20 = 21,004 : x
  2. Step 2: Convert to fraction form
    50,593.66/75,910.20 = 21,004/x
  3. Step 3: Cross multiply
    50,593.66x = 75,910.20 × 21,004
  4. Step 4: Simplify right side
    50,593.66x = 1,594,417,840.80
  5. Step 5: Solve for x
    x = 1,594,417,840.80/50,593.66
  6. Step 6: Final answer
    x = 31,514.18

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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.