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Finding the Fourth Proportional to 7,898.99, 11,845.92 and 4,199.10

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Solution

The fourth proportional to 7,898.99, 11,845.92 and 4,199.10 is: 6,297.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.99 : 11,845.92 = 4,199.10 : x
  2. Step 2: Convert to fraction form
    7,898.99/11,845.92 = 4,199.10/x
  3. Step 3: Cross multiply
    7,898.99x = 11,845.92 × 4,199.10
  4. Step 4: Simplify right side
    7,898.99x = 49,742,202.67
  5. Step 5: Solve for x
    x = 49,742,202.67/7,898.99
  6. Step 6: Final answer
    x = 6,297.29

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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.