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Finding the Fourth Proportional to 7,163.48, 9,883.18 and 4,648.74

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Solution

The fourth proportional to 7,163.48, 9,883.18 and 4,648.74 is: 6,413.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.48 : 9,883.18 = 4,648.74 : x
  2. Step 2: Convert to fraction form
    7,163.48/9,883.18 = 4,648.74/x
  3. Step 3: Cross multiply
    7,163.48x = 9,883.18 × 4,648.74
  4. Step 4: Simplify right side
    7,163.48x = 45,944,334.19
  5. Step 5: Solve for x
    x = 45,944,334.19/7,163.48
  6. Step 6: Final answer
    x = 6,413.69

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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.