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Finding the Fourth Proportional to 8,950.18, 12,351.99 and 4,971.54

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Solution

The fourth proportional to 8,950.18, 12,351.99 and 4,971.54 is: 6,861.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.18 : 12,351.99 = 4,971.54 : x
  2. Step 2: Convert to fraction form
    8,950.18/12,351.99 = 4,971.54/x
  3. Step 3: Cross multiply
    8,950.18x = 12,351.99 × 4,971.54
  4. Step 4: Simplify right side
    8,950.18x = 61,408,412.36
  5. Step 5: Solve for x
    x = 61,408,412.36/8,950.18
  6. Step 6: Final answer
    x = 6,861.14

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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.