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Finding the Fourth Proportional to 34,941.20, 52,411.96 and 8,645.88

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Solution

The fourth proportional to 34,941.20, 52,411.96 and 8,645.88 is: 12,968.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,941.20 : 52,411.96 = 8,645.88 : x
  2. Step 2: Convert to fraction form
    34,941.20/52,411.96 = 8,645.88/x
  3. Step 3: Cross multiply
    34,941.20x = 52,411.96 × 8,645.88
  4. Step 4: Simplify right side
    34,941.20x = 453,147,516.72
  5. Step 5: Solve for x
    x = 453,147,516.72/34,941.20
  6. Step 6: Final answer
    x = 12,968.86

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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.