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Finding the Fourth Proportional to 17,857.34, 26,787.64 and 7,324.92

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Solution

The fourth proportional to 17,857.34, 26,787.64 and 7,324.92 is: 10,988.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.34 : 26,787.64 = 7,324.92 : x
  2. Step 2: Convert to fraction form
    17,857.34/26,787.64 = 7,324.92/x
  3. Step 3: Cross multiply
    17,857.34x = 26,787.64 × 7,324.92
  4. Step 4: Simplify right side
    17,857.34x = 196,217,319.99
  5. Step 5: Solve for x
    x = 196,217,319.99/17,857.34
  6. Step 6: Final answer
    x = 10,988.05

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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.