Home / 17,105.05-25,655.01-5,416.75

Finding the Fourth Proportional to 17,105.05, 25,655.01 and 5,416.75

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Solution

The fourth proportional to 17,105.05, 25,655.01 and 5,416.75 is: 8,124.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,105.05 : 25,655.01 = 5,416.75 : x
  2. Step 2: Convert to fraction form
    17,105.05/25,655.01 = 5,416.75/x
  3. Step 3: Cross multiply
    17,105.05x = 25,655.01 × 5,416.75
  4. Step 4: Simplify right side
    17,105.05x = 138,966,775.42
  5. Step 5: Solve for x
    x = 138,966,775.42/17,105.05
  6. Step 6: Final answer
    x = 8,124.31

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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.