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Finding the Fourth Proportional to 16,991.52, 25,485.48 and 10,406.22

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Solution

The fourth proportional to 16,991.52, 25,485.48 and 10,406.22 is: 15,608.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.52 : 25,485.48 = 10,406.22 : x
  2. Step 2: Convert to fraction form
    16,991.52/25,485.48 = 10,406.22/x
  3. Step 3: Cross multiply
    16,991.52x = 25,485.48 × 10,406.22
  4. Step 4: Simplify right side
    16,991.52x = 265,207,511.69
  5. Step 5: Solve for x
    x = 265,207,511.69/16,991.52
  6. Step 6: Final answer
    x = 15,608.23

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1.5x scale

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.