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Finding the Fourth Proportional to 15,954.99, 23,936.34 and 7,189.91

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Solution

The fourth proportional to 15,954.99, 23,936.34 and 7,189.91 is: 10,786.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,954.99 : 23,936.34 = 7,189.91 : x
  2. Step 2: Convert to fraction form
    15,954.99/23,936.34 = 7,189.91/x
  3. Step 3: Cross multiply
    15,954.99x = 23,936.34 × 7,189.91
  4. Step 4: Simplify right side
    15,954.99x = 172,100,130.33
  5. Step 5: Solve for x
    x = 172,100,130.33/15,954.99
  6. Step 6: Final answer
    x = 10,786.60

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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.