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Finding the Fourth Proportional to 53,863.40, 80,789.40 and 14,424.52

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Solution

The fourth proportional to 53,863.40, 80,789.40 and 14,424.52 is: 21,635.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,863.40 : 80,789.40 = 14,424.52 : x
  2. Step 2: Convert to fraction form
    53,863.40/80,789.40 = 14,424.52/x
  3. Step 3: Cross multiply
    53,863.40x = 80,789.40 × 14,424.52
  4. Step 4: Simplify right side
    53,863.40x = 1,165,348,316.09
  5. Step 5: Solve for x
    x = 1,165,348,316.09/53,863.40
  6. Step 6: Final answer
    x = 21,635.25

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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.