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Finding the Fourth Proportional to 14,606.78, 21,910.94 and 4,745.33

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Solution

The fourth proportional to 14,606.78, 21,910.94 and 4,745.33 is: 7,118.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,606.78 : 21,910.94 = 4,745.33 : x
  2. Step 2: Convert to fraction form
    14,606.78/21,910.94 = 4,745.33/x
  3. Step 3: Cross multiply
    14,606.78x = 21,910.94 × 4,745.33
  4. Step 4: Simplify right side
    14,606.78x = 103,974,640.91
  5. Step 5: Solve for x
    x = 103,974,640.91/14,606.78
  6. Step 6: Final answer
    x = 7,118.25

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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.