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Finding the Fourth Proportional to 7,950.89, 10,971.44 and 4,413.72

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Solution

The fourth proportional to 7,950.89, 10,971.44 and 4,413.72 is: 6,090.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,950.89 : 10,971.44 = 4,413.72 : x
  2. Step 2: Convert to fraction form
    7,950.89/10,971.44 = 4,413.72/x
  3. Step 3: Cross multiply
    7,950.89x = 10,971.44 × 4,413.72
  4. Step 4: Simplify right side
    7,950.89x = 48,424,842.09
  5. Step 5: Solve for x
    x = 48,424,842.09/7,950.89
  6. Step 6: Final answer
    x = 6,090.49

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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.