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Finding the Fourth Proportional to 53,685.96, 80,512.53 and 25,591.20

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Solution

The fourth proportional to 53,685.96, 80,512.53 and 25,591.20 is: 38,378.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,685.96 : 80,512.53 = 25,591.20 : x
  2. Step 2: Convert to fraction form
    53,685.96/80,512.53 = 25,591.20/x
  3. Step 3: Cross multiply
    53,685.96x = 80,512.53 × 25,591.20
  4. Step 4: Simplify right side
    53,685.96x = 2,060,412,257.74
  5. Step 5: Solve for x
    x = 2,060,412,257.74/53,685.96
  6. Step 6: Final answer
    x = 38,378.98

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1.5x scale

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.