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Finding the Fourth Proportional to 8,961.06, 12,357.75 and 5,375.46

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Solution

The fourth proportional to 8,961.06, 12,357.75 and 5,375.46 is: 7,413.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.06 : 12,357.75 = 5,375.46 : x
  2. Step 2: Convert to fraction form
    8,961.06/12,357.75 = 5,375.46/x
  3. Step 3: Cross multiply
    8,961.06x = 12,357.75 × 5,375.46
  4. Step 4: Simplify right side
    8,961.06x = 66,428,590.82
  5. Step 5: Solve for x
    x = 66,428,590.82/8,961.06
  6. Step 6: Final answer
    x = 7,413.03

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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.