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Finding the Fourth Proportional to 26,413.11, 39,619.71 and 6,691.65

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Solution

The fourth proportional to 26,413.11, 39,619.71 and 6,691.65 is: 10,037.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,413.11 : 39,619.71 = 6,691.65 : x
  2. Step 2: Convert to fraction form
    26,413.11/39,619.71 = 6,691.65/x
  3. Step 3: Cross multiply
    26,413.11x = 39,619.71 × 6,691.65
  4. Step 4: Simplify right side
    26,413.11x = 265,121,232.42
  5. Step 5: Solve for x
    x = 265,121,232.42/26,413.11
  6. Step 6: Final answer
    x = 10,037.49

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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.