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Finding the Fourth Proportional to 17,479.80, 26,168.16 and 11,545.80

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Solution

The fourth proportional to 17,479.80, 26,168.16 and 11,545.80 is: 17,284.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,479.80 : 26,168.16 = 11,545.80 : x
  2. Step 2: Convert to fraction form
    17,479.80/26,168.16 = 11,545.80/x
  3. Step 3: Cross multiply
    17,479.80x = 26,168.16 × 11,545.80
  4. Step 4: Simplify right side
    17,479.80x = 302,132,341.73
  5. Step 5: Solve for x
    x = 302,132,341.73/17,479.80
  6. Step 6: Final answer
    x = 17,284.66

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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.