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Finding the Fourth Proportional to 47,366.58, 65,376.84 and 31,236.79

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Solution

The fourth proportional to 47,366.58, 65,376.84 and 31,236.79 is: 43,114.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,366.58 : 65,376.84 = 31,236.79 : x
  2. Step 2: Convert to fraction form
    47,366.58/65,376.84 = 31,236.79/x
  3. Step 3: Cross multiply
    47,366.58x = 65,376.84 × 31,236.79
  4. Step 4: Simplify right side
    47,366.58x = 2,042,162,621.94
  5. Step 5: Solve for x
    x = 2,042,162,621.94/47,366.58
  6. Step 6: Final answer
    x = 43,114.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.