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Finding the Fourth Proportional to 72,626.56, 100,234.74 and 40,797.88

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Solution

The fourth proportional to 72,626.56, 100,234.74 and 40,797.88 is: 56,306.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,626.56 : 100,234.74 = 40,797.88 : x
  2. Step 2: Convert to fraction form
    72,626.56/100,234.74 = 40,797.88/x
  3. Step 3: Cross multiply
    72,626.56x = 100,234.74 × 40,797.88
  4. Step 4: Simplify right side
    72,626.56x = 4,089,364,894.35
  5. Step 5: Solve for x
    x = 4,089,364,894.35/72,626.56
  6. Step 6: Final answer
    x = 56,306.74

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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.