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Finding the Fourth Proportional to 29,323.89, 43,985.22 and 7,137.39

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Solution

The fourth proportional to 29,323.89, 43,985.22 and 7,137.39 is: 10,705.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,323.89 : 43,985.22 = 7,137.39 : x
  2. Step 2: Convert to fraction form
    29,323.89/43,985.22 = 7,137.39/x
  3. Step 3: Cross multiply
    29,323.89x = 43,985.22 × 7,137.39
  4. Step 4: Simplify right side
    29,323.89x = 313,939,669.38
  5. Step 5: Solve for x
    x = 313,939,669.38/29,323.89
  6. Step 6: Final answer
    x = 10,705.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.