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Finding the Fourth Proportional to 10,810.70, 16,220.10 and 4,241.60

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Solution

The fourth proportional to 10,810.70, 16,220.10 and 4,241.60 is: 6,363.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,810.70 : 16,220.10 = 4,241.60 : x
  2. Step 2: Convert to fraction form
    10,810.70/16,220.10 = 4,241.60/x
  3. Step 3: Cross multiply
    10,810.70x = 16,220.10 × 4,241.60
  4. Step 4: Simplify right side
    10,810.70x = 68,799,176.16
  5. Step 5: Solve for x
    x = 68,799,176.16/10,810.70
  6. Step 6: Final answer
    x = 6,363.99

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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.