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Finding the Fourth Proportional to 53,093.84, 79,593.24 and 21,909.20

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Solution

The fourth proportional to 53,093.84, 79,593.24 and 21,909.20 is: 32,844.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,093.84 : 79,593.24 = 21,909.20 : x
  2. Step 2: Convert to fraction form
    53,093.84/79,593.24 = 21,909.20/x
  3. Step 3: Cross multiply
    53,093.84x = 79,593.24 × 21,909.20
  4. Step 4: Simplify right side
    53,093.84x = 1,743,824,213.81
  5. Step 5: Solve for x
    x = 1,743,824,213.81/53,093.84
  6. Step 6: Final answer
    x = 32,844.19

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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.