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Finding the Fourth Proportional to 14,308.73, 19,745.36 and 7,934.82

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Solution

The fourth proportional to 14,308.73, 19,745.36 and 7,934.82 is: 10,949.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,308.73 : 19,745.36 = 7,934.82 : x
  2. Step 2: Convert to fraction form
    14,308.73/19,745.36 = 7,934.82/x
  3. Step 3: Cross multiply
    14,308.73x = 19,745.36 × 7,934.82
  4. Step 4: Simplify right side
    14,308.73x = 156,675,971.36
  5. Step 5: Solve for x
    x = 156,675,971.36/14,308.73
  6. Step 6: Final answer
    x = 10,949.68

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1.5x scale

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.