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Finding the Fourth Proportional to 61,096.62, 91,645.02 and 16,721.58

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Solution

The fourth proportional to 61,096.62, 91,645.02 and 16,721.58 is: 25,082.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,096.62 : 91,645.02 = 16,721.58 : x
  2. Step 2: Convert to fraction form
    61,096.62/91,645.02 = 16,721.58/x
  3. Step 3: Cross multiply
    61,096.62x = 91,645.02 × 16,721.58
  4. Step 4: Simplify right side
    61,096.62x = 1,532,449,533.53
  5. Step 5: Solve for x
    x = 1,532,449,533.53/61,096.62
  6. Step 6: Final answer
    x = 25,082.39

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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.