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Finding the Fourth Proportional to 19,659.57, 29,489.58 and 10,949.82

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Solution

The fourth proportional to 19,659.57, 29,489.58 and 10,949.82 is: 16,424.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.57 : 29,489.58 = 10,949.82 : x
  2. Step 2: Convert to fraction form
    19,659.57/29,489.58 = 10,949.82/x
  3. Step 3: Cross multiply
    19,659.57x = 29,489.58 × 10,949.82
  4. Step 4: Simplify right side
    19,659.57x = 322,905,592.88
  5. Step 5: Solve for x
    x = 322,905,592.88/19,659.57
  6. Step 6: Final answer
    x = 16,424.86

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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.