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Finding the Fourth Proportional to 17,133.55, 25,679.76 and 8,817.49

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Solution

The fourth proportional to 17,133.55, 25,679.76 and 8,817.49 is: 13,215.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,133.55 : 25,679.76 = 8,817.49 : x
  2. Step 2: Convert to fraction form
    17,133.55/25,679.76 = 8,817.49/x
  3. Step 3: Cross multiply
    17,133.55x = 25,679.76 × 8,817.49
  4. Step 4: Simplify right side
    17,133.55x = 226,431,027.00
  5. Step 5: Solve for x
    x = 226,431,027.00/17,133.55
  6. Step 6: Final answer
    x = 13,215.65

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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.