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Finding the Fourth Proportional to 17,039.05, 25,563.81 and 8,724.90

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Solution

The fourth proportional to 17,039.05, 25,563.81 and 8,724.90 is: 13,090.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,039.05 : 25,563.81 = 8,724.90 : x
  2. Step 2: Convert to fraction form
    17,039.05/25,563.81 = 8,724.90/x
  3. Step 3: Cross multiply
    17,039.05x = 25,563.81 × 8,724.90
  4. Step 4: Simplify right side
    17,039.05x = 223,041,642.24
  5. Step 5: Solve for x
    x = 223,041,642.24/17,039.05
  6. Step 6: Final answer
    x = 13,090.03

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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.