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Finding the Fourth Proportional to 38,706.04, 53,413.05 and 22,791.43

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Solution

The fourth proportional to 38,706.04, 53,413.05 and 22,791.43 is: 31,451.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,706.04 : 53,413.05 = 22,791.43 : x
  2. Step 2: Convert to fraction form
    38,706.04/53,413.05 = 22,791.43/x
  3. Step 3: Cross multiply
    38,706.04x = 53,413.05 × 22,791.43
  4. Step 4: Simplify right side
    38,706.04x = 1,217,359,790.16
  5. Step 5: Solve for x
    x = 1,217,359,790.16/38,706.04
  6. Step 6: Final answer
    x = 31,451.42

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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.