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Finding the Fourth Proportional to 17,479.80, 26,213.34 and 7,616.68

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Solution

The fourth proportional to 17,479.80, 26,213.34 and 7,616.68 is: 11,422.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,479.80 : 26,213.34 = 7,616.68 : x
  2. Step 2: Convert to fraction form
    17,479.80/26,213.34 = 7,616.68/x
  3. Step 3: Cross multiply
    17,479.80x = 26,213.34 × 7,616.68
  4. Step 4: Simplify right side
    17,479.80x = 199,658,622.51
  5. Step 5: Solve for x
    x = 199,658,622.51/17,479.80
  6. Step 6: Final answer
    x = 11,422.25

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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.