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Finding the Fourth Proportional to 67,287.42, 92,811.24 and 41,778.54

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Solution

The fourth proportional to 67,287.42, 92,811.24 and 41,778.54 is: 57,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,287.42 : 92,811.24 = 41,778.54 : x
  2. Step 2: Convert to fraction form
    67,287.42/92,811.24 = 41,778.54/x
  3. Step 3: Cross multiply
    67,287.42x = 92,811.24 × 41,778.54
  4. Step 4: Simplify right side
    67,287.42x = 3,877,518,102.79
  5. Step 5: Solve for x
    x = 3,877,518,102.79/67,287.42
  6. Step 6: Final answer
    x = 57,626.20

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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.