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Finding the Fourth Proportional to 40,814.55, 61,223.04 and 11,232.81

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Solution

The fourth proportional to 40,814.55, 61,223.04 and 11,232.81 is: 16,849.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,814.55 : 61,223.04 = 11,232.81 : x
  2. Step 2: Convert to fraction form
    40,814.55/61,223.04 = 11,232.81/x
  3. Step 3: Cross multiply
    40,814.55x = 61,223.04 × 11,232.81
  4. Step 4: Simplify right side
    40,814.55x = 687,706,775.94
  5. Step 5: Solve for x
    x = 687,706,775.94/40,814.55
  6. Step 6: Final answer
    x = 16,849.55

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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.