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Finding the Fourth Proportional to 19,773.72, 29,660.82 and 6,626.13

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Solution

The fourth proportional to 19,773.72, 29,660.82 and 6,626.13 is: 9,939.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,773.72 : 29,660.82 = 6,626.13 : x
  2. Step 2: Convert to fraction form
    19,773.72/29,660.82 = 6,626.13/x
  3. Step 3: Cross multiply
    19,773.72x = 29,660.82 × 6,626.13
  4. Step 4: Simplify right side
    19,773.72x = 196,536,449.23
  5. Step 5: Solve for x
    x = 196,536,449.23/19,773.72
  6. Step 6: Final answer
    x = 9,939.28

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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.