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Finding the Fourth Proportional to 15,960.78, 23,954.97 and 15,923.85

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Solution

The fourth proportional to 15,960.78, 23,954.97 and 15,923.85 is: 23,899.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,960.78 : 23,954.97 = 15,923.85 : x
  2. Step 2: Convert to fraction form
    15,960.78/23,954.97 = 15,923.85/x
  3. Step 3: Cross multiply
    15,960.78x = 23,954.97 × 15,923.85
  4. Step 4: Simplify right side
    15,960.78x = 381,455,349.03
  5. Step 5: Solve for x
    x = 381,455,349.03/15,960.78
  6. Step 6: Final answer
    x = 23,899.54

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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.