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Finding the Fourth Proportional to 63,426.92, 87,486.96 and 40,794.55

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Solution

The fourth proportional to 63,426.92, 87,486.96 and 40,794.55 is: 56,269.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,426.92 : 87,486.96 = 40,794.55 : x
  2. Step 2: Convert to fraction form
    63,426.92/87,486.96 = 40,794.55/x
  3. Step 3: Cross multiply
    63,426.92x = 87,486.96 × 40,794.55
  4. Step 4: Simplify right side
    63,426.92x = 3,568,990,522.66
  5. Step 5: Solve for x
    x = 3,568,990,522.66/63,426.92
  6. Step 6: Final answer
    x = 56,269.34

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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.