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Finding the Fourth Proportional to 53,254.63, 79,858.54 and 19,951.31

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Solution

The fourth proportional to 53,254.63, 79,858.54 and 19,951.31 is: 29,918.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,254.63 : 79,858.54 = 19,951.31 : x
  2. Step 2: Convert to fraction form
    53,254.63/79,858.54 = 19,951.31/x
  3. Step 3: Cross multiply
    53,254.63x = 79,858.54 × 19,951.31
  4. Step 4: Simplify right side
    53,254.63x = 1,593,282,712.27
  5. Step 5: Solve for x
    x = 1,593,282,712.27/53,254.63
  6. Step 6: Final answer
    x = 29,918.20

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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.