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Finding the Fourth Proportional to 8,849.65, 12,212.01 and 5,072.01

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Solution

The fourth proportional to 8,849.65, 12,212.01 and 5,072.01 is: 6,999.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,849.65 : 12,212.01 = 5,072.01 : x
  2. Step 2: Convert to fraction form
    8,849.65/12,212.01 = 5,072.01/x
  3. Step 3: Cross multiply
    8,849.65x = 12,212.01 × 5,072.01
  4. Step 4: Simplify right side
    8,849.65x = 61,939,436.84
  5. Step 5: Solve for x
    x = 61,939,436.84/8,849.65
  6. Step 6: Final answer
    x = 6,999.09

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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.