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Finding the Fourth Proportional to 34,839.50, 52,267.90 and 10,215.50

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Solution

The fourth proportional to 34,839.50, 52,267.90 and 10,215.50 is: 15,325.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,839.50 : 52,267.90 = 10,215.50 : x
  2. Step 2: Convert to fraction form
    34,839.50/52,267.90 = 10,215.50/x
  3. Step 3: Cross multiply
    34,839.50x = 52,267.90 × 10,215.50
  4. Step 4: Simplify right side
    34,839.50x = 533,942,732.45
  5. Step 5: Solve for x
    x = 533,942,732.45/34,839.50
  6. Step 6: Final answer
    x = 15,325.79

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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.