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Finding the Fourth Proportional to 17,900.78, 26,850.36 and 6,214.92

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Solution

The fourth proportional to 17,900.78, 26,850.36 and 6,214.92 is: 9,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,900.78 : 26,850.36 = 6,214.92 : x
  2. Step 2: Convert to fraction form
    17,900.78/26,850.36 = 6,214.92/x
  3. Step 3: Cross multiply
    17,900.78x = 26,850.36 × 6,214.92
  4. Step 4: Simplify right side
    17,900.78x = 166,872,839.37
  5. Step 5: Solve for x
    x = 166,872,839.37/17,900.78
  6. Step 6: Final answer
    x = 9,322.10

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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.