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Finding the Fourth Proportional to 18,081.01, 24,963.40 and 12,413.94

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Solution

The fourth proportional to 18,081.01, 24,963.40 and 12,413.94 is: 17,139.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,081.01 : 24,963.40 = 12,413.94 : x
  2. Step 2: Convert to fraction form
    18,081.01/24,963.40 = 12,413.94/x
  3. Step 3: Cross multiply
    18,081.01x = 24,963.40 × 12,413.94
  4. Step 4: Simplify right side
    18,081.01x = 309,894,149.80
  5. Step 5: Solve for x
    x = 309,894,149.80/18,081.01
  6. Step 6: Final answer
    x = 17,139.21

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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.