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Finding the Fourth Proportional to 23,993.96, 33,104.94 and 13,920.40

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Solution

The fourth proportional to 23,993.96, 33,104.94 and 13,920.40 is: 19,206.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,993.96 : 33,104.94 = 13,920.40 : x
  2. Step 2: Convert to fraction form
    23,993.96/33,104.94 = 13,920.40/x
  3. Step 3: Cross multiply
    23,993.96x = 33,104.94 × 13,920.40
  4. Step 4: Simplify right side
    23,993.96x = 460,834,006.78
  5. Step 5: Solve for x
    x = 460,834,006.78/23,993.96
  6. Step 6: Final answer
    x = 19,206.25

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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.