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Finding the Fourth Proportional to 17,647.12, 26,476.76 and 8,874.82

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Solution

The fourth proportional to 17,647.12, 26,476.76 and 8,874.82 is: 13,315.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,647.12 : 26,476.76 = 8,874.82 : x
  2. Step 2: Convert to fraction form
    17,647.12/26,476.76 = 8,874.82/x
  3. Step 3: Cross multiply
    17,647.12x = 26,476.76 × 8,874.82
  4. Step 4: Simplify right side
    17,647.12x = 234,976,479.18
  5. Step 5: Solve for x
    x = 234,976,479.18/17,647.12
  6. Step 6: Final answer
    x = 13,315.29

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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.