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Finding the Fourth Proportional to 19,804.17, 29,709.54 and 7,324.23

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Solution

The fourth proportional to 19,804.17, 29,709.54 and 7,324.23 is: 10,987.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,804.17 : 29,709.54 = 7,324.23 : x
  2. Step 2: Convert to fraction form
    19,804.17/29,709.54 = 7,324.23/x
  3. Step 3: Cross multiply
    19,804.17x = 29,709.54 × 7,324.23
  4. Step 4: Simplify right side
    19,804.17x = 217,599,504.15
  5. Step 5: Solve for x
    x = 217,599,504.15/19,804.17
  6. Step 6: Final answer
    x = 10,987.56

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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.