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Finding the Fourth Proportional to 19,697.70, 29,521.02 and 8,004.54

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Solution

The fourth proportional to 19,697.70, 29,521.02 and 8,004.54 is: 11,996.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,697.70 : 29,521.02 = 8,004.54 : x
  2. Step 2: Convert to fraction form
    19,697.70/29,521.02 = 8,004.54/x
  3. Step 3: Cross multiply
    19,697.70x = 29,521.02 × 8,004.54
  4. Step 4: Simplify right side
    19,697.70x = 236,302,185.43
  5. Step 5: Solve for x
    x = 236,302,185.43/19,697.70
  6. Step 6: Final answer
    x = 11,996.44

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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.