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Finding the Fourth Proportional to 17,144.87, 25,706.93 and 11,214.63

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Solution

The fourth proportional to 17,144.87, 25,706.93 and 11,214.63 is: 16,815.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,144.87 : 25,706.93 = 11,214.63 : x
  2. Step 2: Convert to fraction form
    17,144.87/25,706.93 = 11,214.63/x
  3. Step 3: Cross multiply
    17,144.87x = 25,706.93 × 11,214.63
  4. Step 4: Simplify right side
    17,144.87x = 288,293,652.31
  5. Step 5: Solve for x
    x = 288,293,652.31/17,144.87
  6. Step 6: Final answer
    x = 16,815.16

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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.