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Finding the Fourth Proportional to 17,706.34, 26,549.78 and 12,161.08

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Solution

The fourth proportional to 17,706.34, 26,549.78 and 12,161.08 is: 18,234.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,706.34 : 26,549.78 = 12,161.08 : x
  2. Step 2: Convert to fraction form
    17,706.34/26,549.78 = 12,161.08/x
  3. Step 3: Cross multiply
    17,706.34x = 26,549.78 × 12,161.08
  4. Step 4: Simplify right side
    17,706.34x = 322,873,962.59
  5. Step 5: Solve for x
    x = 322,873,962.59/17,706.34
  6. Step 6: Final answer
    x = 18,234.94

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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.