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Finding the Fourth Proportional to 8,950.60, 12,351.67 and 4,971.61

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Solution

The fourth proportional to 8,950.60, 12,351.67 and 4,971.61 is: 6,860.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.60 : 12,351.67 = 4,971.61 : x
  2. Step 2: Convert to fraction form
    8,950.60/12,351.67 = 4,971.61/x
  3. Step 3: Cross multiply
    8,950.60x = 12,351.67 × 4,971.61
  4. Step 4: Simplify right side
    8,950.60x = 61,407,686.09
  5. Step 5: Solve for x
    x = 61,407,686.09/8,950.60
  6. Step 6: Final answer
    x = 6,860.73

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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.