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Finding the Fourth Proportional to 57,770.76, 86,670.72 and 16,217.76

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Solution

The fourth proportional to 57,770.76, 86,670.72 and 16,217.76 is: 24,330.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,770.76 : 86,670.72 = 16,217.76 : x
  2. Step 2: Convert to fraction form
    57,770.76/86,670.72 = 16,217.76/x
  3. Step 3: Cross multiply
    57,770.76x = 86,670.72 × 16,217.76
  4. Step 4: Simplify right side
    57,770.76x = 1,405,604,935.99
  5. Step 5: Solve for x
    x = 1,405,604,935.99/57,770.76
  6. Step 6: Final answer
    x = 24,330.73

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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.