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Finding the Fourth Proportional to 76,589.68, 114,892.74 and 32,220.94

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Solution

The fourth proportional to 76,589.68, 114,892.74 and 32,220.94 is: 48,334.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,589.68 : 114,892.74 = 32,220.94 : x
  2. Step 2: Convert to fraction form
    76,589.68/114,892.74 = 32,220.94/x
  3. Step 3: Cross multiply
    76,589.68x = 114,892.74 × 32,220.94
  4. Step 4: Simplify right side
    76,589.68x = 3,701,952,081.98
  5. Step 5: Solve for x
    x = 3,701,952,081.98/76,589.68
  6. Step 6: Final answer
    x = 48,334.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.