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Finding the Fourth Proportional to 17,619.25, 26,426.06 and 5,136.36

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Solution

The fourth proportional to 17,619.25, 26,426.06 and 5,136.36 is: 7,703.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,619.25 : 26,426.06 = 5,136.36 : x
  2. Step 2: Convert to fraction form
    17,619.25/26,426.06 = 5,136.36/x
  3. Step 3: Cross multiply
    17,619.25x = 26,426.06 × 5,136.36
  4. Step 4: Simplify right side
    17,619.25x = 135,733,757.54
  5. Step 5: Solve for x
    x = 135,733,757.54/17,619.25
  6. Step 6: Final answer
    x = 7,703.72

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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.