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Finding the Fourth Proportional to 53,498.90, 80,211.90 and 25,432.40

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Solution

The fourth proportional to 53,498.90, 80,211.90 and 25,432.40 is: 38,131.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,498.90 : 80,211.90 = 25,432.40 : x
  2. Step 2: Convert to fraction form
    53,498.90/80,211.90 = 25,432.40/x
  3. Step 3: Cross multiply
    53,498.90x = 80,211.90 × 25,432.40
  4. Step 4: Simplify right side
    53,498.90x = 2,039,981,125.56
  5. Step 5: Solve for x
    x = 2,039,981,125.56/53,498.90
  6. Step 6: Final answer
    x = 38,131.27

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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.