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Finding the Fourth Proportional to 19,523.45, 29,285.97 and 5,672.45

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Solution

The fourth proportional to 19,523.45, 29,285.97 and 5,672.45 is: 8,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,523.45 : 29,285.97 = 5,672.45 : x
  2. Step 2: Convert to fraction form
    19,523.45/29,285.97 = 5,672.45/x
  3. Step 3: Cross multiply
    19,523.45x = 29,285.97 × 5,672.45
  4. Step 4: Simplify right side
    19,523.45x = 166,123,054.10
  5. Step 5: Solve for x
    x = 166,123,054.10/19,523.45
  6. Step 6: Final answer
    x = 8,508.90

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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.