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Finding the Fourth Proportional to 17,169.81, 25,749.14 and 5,480.25

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Solution

The fourth proportional to 17,169.81, 25,749.14 and 5,480.25 is: 8,218.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,169.81 : 25,749.14 = 5,480.25 : x
  2. Step 2: Convert to fraction form
    17,169.81/25,749.14 = 5,480.25/x
  3. Step 3: Cross multiply
    17,169.81x = 25,749.14 × 5,480.25
  4. Step 4: Simplify right side
    17,169.81x = 141,111,697.08
  5. Step 5: Solve for x
    x = 141,111,697.08/17,169.81
  6. Step 6: Final answer
    x = 8,218.59

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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.