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Finding the Fourth Proportional to 34,662.70, 52,006.20 and 12,476.80

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Solution

The fourth proportional to 34,662.70, 52,006.20 and 12,476.80 is: 18,719.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,662.70 : 52,006.20 = 12,476.80 : x
  2. Step 2: Convert to fraction form
    34,662.70/52,006.20 = 12,476.80/x
  3. Step 3: Cross multiply
    34,662.70x = 52,006.20 × 12,476.80
  4. Step 4: Simplify right side
    34,662.70x = 648,870,956.16
  5. Step 5: Solve for x
    x = 648,870,956.16/34,662.70
  6. Step 6: Final answer
    x = 18,719.57

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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.