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Finding the Fourth Proportional to 34,293.72, 51,446.72 and 12,119.97

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Solution

The fourth proportional to 34,293.72, 51,446.72 and 12,119.97 is: 18,182.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,293.72 : 51,446.72 = 12,119.97 : x
  2. Step 2: Convert to fraction form
    34,293.72/51,446.72 = 12,119.97/x
  3. Step 3: Cross multiply
    34,293.72x = 51,446.72 × 12,119.97
  4. Step 4: Simplify right side
    34,293.72x = 623,532,385.16
  5. Step 5: Solve for x
    x = 623,532,385.16/34,293.72
  6. Step 6: Final answer
    x = 18,182.12

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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.