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Finding the Fourth Proportional to 17,857.53, 26,827.34 and 12,604.64

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Solution

The fourth proportional to 17,857.53, 26,827.34 and 12,604.64 is: 18,935.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.53 : 26,827.34 = 12,604.64 : x
  2. Step 2: Convert to fraction form
    17,857.53/26,827.34 = 12,604.64/x
  3. Step 3: Cross multiply
    17,857.53x = 26,827.34 × 12,604.64
  4. Step 4: Simplify right side
    17,857.53x = 338,148,765.70
  5. Step 5: Solve for x
    x = 338,148,765.70/17,857.53
  6. Step 6: Final answer
    x = 18,935.92

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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.