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Finding the Fourth Proportional to 19,593.78, 29,395.02 and 6,445.62

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Solution

The fourth proportional to 19,593.78, 29,395.02 and 6,445.62 is: 9,669.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,593.78 : 29,395.02 = 6,445.62 : x
  2. Step 2: Convert to fraction form
    19,593.78/29,395.02 = 6,445.62/x
  3. Step 3: Cross multiply
    19,593.78x = 29,395.02 × 6,445.62
  4. Step 4: Simplify right side
    19,593.78x = 189,469,128.81
  5. Step 5: Solve for x
    x = 189,469,128.81/19,593.78
  6. Step 6: Final answer
    x = 9,669.86

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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.