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Finding the Fourth Proportional to 62,269, 93,404.31 and 20,716

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Solution

The fourth proportional to 62,269, 93,404.31 and 20,716 is: 31,074.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,269 : 93,404.31 = 20,716 : x
  2. Step 2: Convert to fraction form
    62,269/93,404.31 = 20,716/x
  3. Step 3: Cross multiply
    62,269x = 93,404.31 × 20,716
  4. Step 4: Simplify right side
    62,269x = 1,934,963,685.96
  5. Step 5: Solve for x
    x = 1,934,963,685.96/62,269
  6. Step 6: Final answer
    x = 31,074.27

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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.