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Finding the Fourth Proportional to 19,796.81, 29,695.21 and 5,005.73

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Solution

The fourth proportional to 19,796.81, 29,695.21 and 5,005.73 is: 7,508.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,796.81 : 29,695.21 = 5,005.73 : x
  2. Step 2: Convert to fraction form
    19,796.81/29,695.21 = 5,005.73/x
  3. Step 3: Cross multiply
    19,796.81x = 29,695.21 × 5,005.73
  4. Step 4: Simplify right side
    19,796.81x = 148,646,265.28
  5. Step 5: Solve for x
    x = 148,646,265.28/19,796.81
  6. Step 6: Final answer
    x = 7,508.60

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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.