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Finding the Fourth Proportional to 13,231, 19,846.50 and 5,935

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Solution

The fourth proportional to 13,231, 19,846.50 and 5,935 is: 8,902.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231 : 19,846.50 = 5,935 : x
  2. Step 2: Convert to fraction form
    13,231/19,846.50 = 5,935/x
  3. Step 3: Cross multiply
    13,231x = 19,846.50 × 5,935
  4. Step 4: Simplify right side
    13,231x = 117,788,977.50
  5. Step 5: Solve for x
    x = 117,788,977.50/13,231
  6. Step 6: Final answer
    x = 8,902.50

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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.