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Finding the Fourth Proportional to 22,305.92, 33,444.48 and 12,947.84

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Solution

The fourth proportional to 22,305.92, 33,444.48 and 12,947.84 is: 19,413.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,305.92 : 33,444.48 = 12,947.84 : x
  2. Step 2: Convert to fraction form
    22,305.92/33,444.48 = 12,947.84/x
  3. Step 3: Cross multiply
    22,305.92x = 33,444.48 × 12,947.84
  4. Step 4: Simplify right side
    22,305.92x = 433,033,775.92
  5. Step 5: Solve for x
    x = 433,033,775.92/22,305.92
  6. Step 6: Final answer
    x = 19,413.40

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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.