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Finding the Fourth Proportional to 62,361.81, 93,543.53 and 20,808.81

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Solution

The fourth proportional to 62,361.81, 93,543.53 and 20,808.81 is: 31,213.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,361.81 : 93,543.53 = 20,808.81 : x
  2. Step 2: Convert to fraction form
    62,361.81/93,543.53 = 20,808.81/x
  3. Step 3: Cross multiply
    62,361.81x = 93,543.53 × 20,808.81
  4. Step 4: Simplify right side
    62,361.81x = 1,946,529,542.50
  5. Step 5: Solve for x
    x = 1,946,529,542.50/62,361.81
  6. Step 6: Final answer
    x = 31,213.49

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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.