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Finding the Fourth Proportional to 23,129.72, 34,683.74 and 8,336.68

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Solution

The fourth proportional to 23,129.72, 34,683.74 and 8,336.68 is: 12,501.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,129.72 : 34,683.74 = 8,336.68 : x
  2. Step 2: Convert to fraction form
    23,129.72/34,683.74 = 8,336.68/x
  3. Step 3: Cross multiply
    23,129.72x = 34,683.74 × 8,336.68
  4. Step 4: Simplify right side
    23,129.72x = 289,147,241.58
  5. Step 5: Solve for x
    x = 289,147,241.58/23,129.72
  6. Step 6: Final answer
    x = 12,501.11

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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.