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Finding the Fourth Proportional to 52,717.76, 79,076.69 and 21,553.01

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Solution

The fourth proportional to 52,717.76, 79,076.69 and 21,553.01 is: 32,329.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,717.76 : 79,076.69 = 21,553.01 : x
  2. Step 2: Convert to fraction form
    52,717.76/79,076.69 = 21,553.01/x
  3. Step 3: Cross multiply
    52,717.76x = 79,076.69 × 21,553.01
  4. Step 4: Simplify right side
    52,717.76x = 1,704,340,187.19
  5. Step 5: Solve for x
    x = 1,704,340,187.19/52,717.76
  6. Step 6: Final answer
    x = 32,329.53

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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.