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Finding the Fourth Proportional to 40,650.65, 60,969.80 and 11,070.81

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Solution

The fourth proportional to 40,650.65, 60,969.80 and 11,070.81 is: 16,604.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,650.65 : 60,969.80 = 11,070.81 : x
  2. Step 2: Convert to fraction form
    40,650.65/60,969.80 = 11,070.81/x
  3. Step 3: Cross multiply
    40,650.65x = 60,969.80 × 11,070.81
  4. Step 4: Simplify right side
    40,650.65x = 674,985,099.22
  5. Step 5: Solve for x
    x = 674,985,099.22/40,650.65
  6. Step 6: Final answer
    x = 16,604.54

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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.