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Finding the Fourth Proportional to 19,898.81, 29,841.78 and 6,568.81

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Solution

The fourth proportional to 19,898.81, 29,841.78 and 6,568.81 is: 9,851.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,898.81 : 29,841.78 = 6,568.81 : x
  2. Step 2: Convert to fraction form
    19,898.81/29,841.78 = 6,568.81/x
  3. Step 3: Cross multiply
    19,898.81x = 29,841.78 × 6,568.81
  4. Step 4: Simplify right side
    19,898.81x = 196,024,982.88
  5. Step 5: Solve for x
    x = 196,024,982.88/19,898.81
  6. Step 6: Final answer
    x = 9,851.09

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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.