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Finding the Fourth Proportional to 53,195.31, 79,784.31 and 25,115.31

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Solution

The fourth proportional to 53,195.31, 79,784.31 and 25,115.31 is: 37,668.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,195.31 : 79,784.31 = 25,115.31 : x
  2. Step 2: Convert to fraction form
    53,195.31/79,784.31 = 25,115.31/x
  3. Step 3: Cross multiply
    53,195.31x = 79,784.31 × 25,115.31
  4. Step 4: Simplify right side
    53,195.31x = 2,003,807,678.79
  5. Step 5: Solve for x
    x = 2,003,807,678.79/53,195.31
  6. Step 6: Final answer
    x = 37,668.88

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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.