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Finding the Fourth Proportional to 53,673.52, 80,387.65 and 25,613.28

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Solution

The fourth proportional to 53,673.52, 80,387.65 and 25,613.28 is: 38,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,673.52 : 80,387.65 = 25,613.28 : x
  2. Step 2: Convert to fraction form
    53,673.52/80,387.65 = 25,613.28/x
  3. Step 3: Cross multiply
    53,673.52x = 80,387.65 × 25,613.28
  4. Step 4: Simplify right side
    53,673.52x = 2,058,991,035.85
  5. Step 5: Solve for x
    x = 2,058,991,035.85/53,673.52
  6. Step 6: Final answer
    x = 38,361.40

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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.