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Finding the Fourth Proportional to 17,243.53, 25,865.78 and 4,763.55

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Solution

The fourth proportional to 17,243.53, 25,865.78 and 4,763.55 is: 7,145.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,243.53 : 25,865.78 = 4,763.55 : x
  2. Step 2: Convert to fraction form
    17,243.53/25,865.78 = 4,763.55/x
  3. Step 3: Cross multiply
    17,243.53x = 25,865.78 × 4,763.55
  4. Step 4: Simplify right side
    17,243.53x = 123,213,027.36
  5. Step 5: Solve for x
    x = 123,213,027.36/17,243.53
  6. Step 6: Final answer
    x = 7,145.47

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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.