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Finding the Fourth Proportional to 17,101.11, 25,649.10 and 5,412.81

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Solution

The fourth proportional to 17,101.11, 25,649.10 and 5,412.81 is: 8,118.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,101.11 : 25,649.10 = 5,412.81 : x
  2. Step 2: Convert to fraction form
    17,101.11/25,649.10 = 5,412.81/x
  3. Step 3: Cross multiply
    17,101.11x = 25,649.10 × 5,412.81
  4. Step 4: Simplify right side
    17,101.11x = 138,833,704.97
  5. Step 5: Solve for x
    x = 138,833,704.97/17,101.11
  6. Step 6: Final answer
    x = 8,118.40

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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.