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Finding the Fourth Proportional to 17,133.60, 25,659.36 and 8,791.68

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Solution

The fourth proportional to 17,133.60, 25,659.36 and 8,791.68 is: 13,166.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,133.60 : 25,659.36 = 8,791.68 : x
  2. Step 2: Convert to fraction form
    17,133.60/25,659.36 = 8,791.68/x
  3. Step 3: Cross multiply
    17,133.60x = 25,659.36 × 8,791.68
  4. Step 4: Simplify right side
    17,133.60x = 225,588,882.12
  5. Step 5: Solve for x
    x = 225,588,882.12/17,133.60
  6. Step 6: Final answer
    x = 13,166.46

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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.