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Finding the Fourth Proportional to 65,825.52, 90,823.32 and 37,520.88

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Solution

The fourth proportional to 65,825.52, 90,823.32 and 37,520.88 is: 51,769.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,825.52 : 90,823.32 = 37,520.88 : x
  2. Step 2: Convert to fraction form
    65,825.52/90,823.32 = 37,520.88/x
  3. Step 3: Cross multiply
    65,825.52x = 90,823.32 × 37,520.88
  4. Step 4: Simplify right side
    65,825.52x = 3,407,770,890.92
  5. Step 5: Solve for x
    x = 3,407,770,890.92/65,825.52
  6. Step 6: Final answer
    x = 51,769.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.