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Finding the Fourth Proportional to 53,167.84, 79,727.46 and 19,863.48

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Solution

The fourth proportional to 53,167.84, 79,727.46 and 19,863.48 is: 29,786.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,167.84 : 79,727.46 = 19,863.48 : x
  2. Step 2: Convert to fraction form
    53,167.84/79,727.46 = 19,863.48/x
  3. Step 3: Cross multiply
    53,167.84x = 79,727.46 × 19,863.48
  4. Step 4: Simplify right side
    53,167.84x = 1,583,664,408.52
  5. Step 5: Solve for x
    x = 1,583,664,408.52/53,167.84
  6. Step 6: Final answer
    x = 29,786.13

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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.