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Finding the Fourth Proportional to 52,814.52, 72,882.78 and 28,940.04

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Solution

The fourth proportional to 52,814.52, 72,882.78 and 28,940.04 is: 39,936.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,814.52 : 72,882.78 = 28,940.04 : x
  2. Step 2: Convert to fraction form
    52,814.52/72,882.78 = 28,940.04/x
  3. Step 3: Cross multiply
    52,814.52x = 72,882.78 × 28,940.04
  4. Step 4: Simplify right side
    52,814.52x = 2,109,230,568.51
  5. Step 5: Solve for x
    x = 2,109,230,568.51/52,814.52
  6. Step 6: Final answer
    x = 39,936.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.