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Finding the Fourth Proportional to 19,544.78, 29,322.12 and 5,693.78

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Solution

The fourth proportional to 19,544.78, 29,322.12 and 5,693.78 is: 8,542.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,544.78 : 29,322.12 = 5,693.78 : x
  2. Step 2: Convert to fraction form
    19,544.78/29,322.12 = 5,693.78/x
  3. Step 3: Cross multiply
    19,544.78x = 29,322.12 × 5,693.78
  4. Step 4: Simplify right side
    19,544.78x = 166,953,700.41
  5. Step 5: Solve for x
    x = 166,953,700.41/19,544.78
  6. Step 6: Final answer
    x = 8,542.11

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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.