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Finding the Fourth Proportional to 10,878.99, 16,324.95 and 3,954.03

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Solution

The fourth proportional to 10,878.99, 16,324.95 and 3,954.03 is: 5,933.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.99 : 16,324.95 = 3,954.03 : x
  2. Step 2: Convert to fraction form
    10,878.99/16,324.95 = 3,954.03/x
  3. Step 3: Cross multiply
    10,878.99x = 16,324.95 × 3,954.03
  4. Step 4: Simplify right side
    10,878.99x = 64,549,342.05
  5. Step 5: Solve for x
    x = 64,549,342.05/10,878.99
  6. Step 6: Final answer
    x = 5,933.39

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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.