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Finding the Fourth Proportional to 58,245.50, 80,378.88 and 33,099.86

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Solution

The fourth proportional to 58,245.50, 80,378.88 and 33,099.86 is: 45,677.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,245.50 : 80,378.88 = 33,099.86 : x
  2. Step 2: Convert to fraction form
    58,245.50/80,378.88 = 33,099.86/x
  3. Step 3: Cross multiply
    58,245.50x = 80,378.88 × 33,099.86
  4. Step 4: Simplify right side
    58,245.50x = 2,660,529,674.96
  5. Step 5: Solve for x
    x = 2,660,529,674.96/58,245.50
  6. Step 6: Final answer
    x = 45,677.86

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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.