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Finding the Fourth Proportional to 19,903.12, 27,466.64 and 10,951

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Solution

The fourth proportional to 19,903.12, 27,466.64 and 10,951 is: 15,112.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,903.12 : 27,466.64 = 10,951 : x
  2. Step 2: Convert to fraction form
    19,903.12/27,466.64 = 10,951/x
  3. Step 3: Cross multiply
    19,903.12x = 27,466.64 × 10,951
  4. Step 4: Simplify right side
    19,903.12x = 300,787,174.64
  5. Step 5: Solve for x
    x = 300,787,174.64/19,903.12
  6. Step 6: Final answer
    x = 15,112.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.