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Finding the Fourth Proportional to 27,187.13, 40,763.94 and 9,413.65

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Solution

The fourth proportional to 27,187.13, 40,763.94 and 9,413.65 is: 14,114.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,187.13 : 40,763.94 = 9,413.65 : x
  2. Step 2: Convert to fraction form
    27,187.13/40,763.94 = 9,413.65/x
  3. Step 3: Cross multiply
    27,187.13x = 40,763.94 × 9,413.65
  4. Step 4: Simplify right side
    27,187.13x = 383,737,479.43
  5. Step 5: Solve for x
    x = 383,737,479.43/27,187.13
  6. Step 6: Final answer
    x = 14,114.67

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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.