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Finding the Fourth Proportional to 17,033.70, 25,550.55 and 13,145.70

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Solution

The fourth proportional to 17,033.70, 25,550.55 and 13,145.70 is: 19,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,033.70 : 25,550.55 = 13,145.70 : x
  2. Step 2: Convert to fraction form
    17,033.70/25,550.55 = 13,145.70/x
  3. Step 3: Cross multiply
    17,033.70x = 25,550.55 × 13,145.70
  4. Step 4: Simplify right side
    17,033.70x = 335,879,865.14
  5. Step 5: Solve for x
    x = 335,879,865.14/17,033.70
  6. Step 6: Final answer
    x = 19,718.55

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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.