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Finding the Fourth Proportional to 47,361.66, 71,041.87 and 13,628.56

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Solution

The fourth proportional to 47,361.66, 71,041.87 and 13,628.56 is: 20,442.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,361.66 : 71,041.87 = 13,628.56 : x
  2. Step 2: Convert to fraction form
    47,361.66/71,041.87 = 13,628.56/x
  3. Step 3: Cross multiply
    47,361.66x = 71,041.87 × 13,628.56
  4. Step 4: Simplify right side
    47,361.66x = 968,198,387.81
  5. Step 5: Solve for x
    x = 968,198,387.81/47,361.66
  6. Step 6: Final answer
    x = 20,442.66

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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.