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Finding the Fourth Proportional to 17,259.88, 25,889.56 and 7,765.49

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Solution

The fourth proportional to 17,259.88, 25,889.56 and 7,765.49 is: 11,648.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,259.88 : 25,889.56 = 7,765.49 : x
  2. Step 2: Convert to fraction form
    17,259.88/25,889.56 = 7,765.49/x
  3. Step 3: Cross multiply
    17,259.88x = 25,889.56 × 7,765.49
  4. Step 4: Simplify right side
    17,259.88x = 201,045,179.15
  5. Step 5: Solve for x
    x = 201,045,179.15/17,259.88
  6. Step 6: Final answer
    x = 11,648.12

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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.