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Finding the Fourth Proportional to 17,858.80, 26,784.78 and 6,169.60

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Solution

The fourth proportional to 17,858.80, 26,784.78 and 6,169.60 is: 9,253.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,858.80 : 26,784.78 = 6,169.60 : x
  2. Step 2: Convert to fraction form
    17,858.80/26,784.78 = 6,169.60/x
  3. Step 3: Cross multiply
    17,858.80x = 26,784.78 × 6,169.60
  4. Step 4: Simplify right side
    17,858.80x = 165,251,378.69
  5. Step 5: Solve for x
    x = 165,251,378.69/17,858.80
  6. Step 6: Final answer
    x = 9,253.22

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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.