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Finding the Fourth Proportional to 2,959.58, 4,413.03 and 2,831.09

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Solution

The fourth proportional to 2,959.58, 4,413.03 and 2,831.09 is: 4,221.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959.58 : 4,413.03 = 2,831.09 : x
  2. Step 2: Convert to fraction form
    2,959.58/4,413.03 = 2,831.09/x
  3. Step 3: Cross multiply
    2,959.58x = 4,413.03 × 2,831.09
  4. Step 4: Simplify right side
    2,959.58x = 12,493,685.10
  5. Step 5: Solve for x
    x = 12,493,685.10/2,959.58
  6. Step 6: Final answer
    x = 4,221.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.