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Finding the Fourth Proportional to 15,935.21, 23,902.78 and 7,589.91

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Solution

The fourth proportional to 15,935.21, 23,902.78 and 7,589.91 is: 11,384.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,935.21 : 23,902.78 = 7,589.91 : x
  2. Step 2: Convert to fraction form
    15,935.21/23,902.78 = 7,589.91/x
  3. Step 3: Cross multiply
    15,935.21x = 23,902.78 × 7,589.91
  4. Step 4: Simplify right side
    15,935.21x = 181,419,911.00
  5. Step 5: Solve for x
    x = 181,419,911.00/15,935.21
  6. Step 6: Final answer
    x = 11,384.85

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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.