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Finding the Fourth Proportional to 29,588.50, 44,390.45 and 8,812

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Solution

The fourth proportional to 29,588.50, 44,390.45 and 8,812 is: 13,220.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,588.50 : 44,390.45 = 8,812 : x
  2. Step 2: Convert to fraction form
    29,588.50/44,390.45 = 8,812/x
  3. Step 3: Cross multiply
    29,588.50x = 44,390.45 × 8,812
  4. Step 4: Simplify right side
    29,588.50x = 391,168,645.40
  5. Step 5: Solve for x
    x = 391,168,645.40/29,588.50
  6. Step 6: Final answer
    x = 13,220.29

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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.