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Finding the Fourth Proportional to 17,935.77, 26,917.69 and 12,427.77

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Solution

The fourth proportional to 17,935.77, 26,917.69 and 12,427.77 is: 18,651.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,935.77 : 26,917.69 = 12,427.77 : x
  2. Step 2: Convert to fraction form
    17,935.77/26,917.69 = 12,427.77/x
  3. Step 3: Cross multiply
    17,935.77x = 26,917.69 × 12,427.77
  4. Step 4: Simplify right side
    17,935.77x = 334,526,860.25
  5. Step 5: Solve for x
    x = 334,526,860.25/17,935.77
  6. Step 6: Final answer
    x = 18,651.38

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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.