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Finding the Fourth Proportional to 57,770.70, 86,664.15 and 18,323.70

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Solution

The fourth proportional to 57,770.70, 86,664.15 and 18,323.70 is: 27,488.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,770.70 : 86,664.15 = 18,323.70 : x
  2. Step 2: Convert to fraction form
    57,770.70/86,664.15 = 18,323.70/x
  3. Step 3: Cross multiply
    57,770.70x = 86,664.15 × 18,323.70
  4. Step 4: Simplify right side
    57,770.70x = 1,588,007,885.36
  5. Step 5: Solve for x
    x = 1,588,007,885.36/57,770.70
  6. Step 6: Final answer
    x = 27,488.12

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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.