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Finding the Fourth Proportional to 53,167.59, 79,727.09 and 19,863.23

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Solution

The fourth proportional to 53,167.59, 79,727.09 and 19,863.23 is: 29,785.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,167.59 : 79,727.09 = 19,863.23 : x
  2. Step 2: Convert to fraction form
    53,167.59/79,727.09 = 19,863.23/x
  3. Step 3: Cross multiply
    53,167.59x = 79,727.09 × 19,863.23
  4. Step 4: Simplify right side
    53,167.59x = 1,583,637,027.95
  5. Step 5: Solve for x
    x = 1,583,637,027.95/53,167.59
  6. Step 6: Final answer
    x = 29,785.76

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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.