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Finding the Fourth Proportional to 19,422.64, 29,126.56 and 6,940.36

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Solution

The fourth proportional to 19,422.64, 29,126.56 and 6,940.36 is: 10,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422.64 : 29,126.56 = 6,940.36 : x
  2. Step 2: Convert to fraction form
    19,422.64/29,126.56 = 6,940.36/x
  3. Step 3: Cross multiply
    19,422.64x = 29,126.56 × 6,940.36
  4. Step 4: Simplify right side
    19,422.64x = 202,148,811.96
  5. Step 5: Solve for x
    x = 202,148,811.96/19,422.64
  6. Step 6: Final answer
    x = 10,407.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.