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Finding the Fourth Proportional to 19,362.66, 29,040.30 and 7,516.44

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Solution

The fourth proportional to 19,362.66, 29,040.30 and 7,516.44 is: 11,273.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,362.66 : 29,040.30 = 7,516.44 : x
  2. Step 2: Convert to fraction form
    19,362.66/29,040.30 = 7,516.44/x
  3. Step 3: Cross multiply
    19,362.66x = 29,040.30 × 7,516.44
  4. Step 4: Simplify right side
    19,362.66x = 218,279,672.53
  5. Step 5: Solve for x
    x = 218,279,672.53/19,362.66
  6. Step 6: Final answer
    x = 11,273.23

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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.