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Finding the Fourth Proportional to 7,974.56, 11,005.11 and 4,438.01

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Solution

The fourth proportional to 7,974.56, 11,005.11 and 4,438.01 is: 6,124.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.56 : 11,005.11 = 4,438.01 : x
  2. Step 2: Convert to fraction form
    7,974.56/11,005.11 = 4,438.01/x
  3. Step 3: Cross multiply
    7,974.56x = 11,005.11 × 4,438.01
  4. Step 4: Simplify right side
    7,974.56x = 48,840,788.23
  5. Step 5: Solve for x
    x = 48,840,788.23/7,974.56
  6. Step 6: Final answer
    x = 6,124.57

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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.