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Finding the Fourth Proportional to 10,891.01, 15,029.01 and 6,413.74

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Solution

The fourth proportional to 10,891.01, 15,029.01 and 6,413.74 is: 8,850.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.01 : 15,029.01 = 6,413.74 : x
  2. Step 2: Convert to fraction form
    10,891.01/15,029.01 = 6,413.74/x
  3. Step 3: Cross multiply
    10,891.01x = 15,029.01 × 6,413.74
  4. Step 4: Simplify right side
    10,891.01x = 96,392,125.02
  5. Step 5: Solve for x
    x = 96,392,125.02/10,891.01
  6. Step 6: Final answer
    x = 8,850.61

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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.