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Finding the Fourth Proportional to 29,290.43, 40,413.79 and 16,543.87

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Solution

The fourth proportional to 29,290.43, 40,413.79 and 16,543.87 is: 22,826.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,290.43 : 40,413.79 = 16,543.87 : x
  2. Step 2: Convert to fraction form
    29,290.43/40,413.79 = 16,543.87/x
  3. Step 3: Cross multiply
    29,290.43x = 40,413.79 × 16,543.87
  4. Step 4: Simplify right side
    29,290.43x = 668,600,487.97
  5. Step 5: Solve for x
    x = 668,600,487.97/29,290.43
  6. Step 6: Final answer
    x = 22,826.58

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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.