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Finding the Fourth Proportional to 58,645.44, 80,930.84 and 31,787.91

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Solution

The fourth proportional to 58,645.44, 80,930.84 and 31,787.91 is: 43,867.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,645.44 : 80,930.84 = 31,787.91 : x
  2. Step 2: Convert to fraction form
    58,645.44/80,930.84 = 31,787.91/x
  3. Step 3: Cross multiply
    58,645.44x = 80,930.84 × 31,787.91
  4. Step 4: Simplify right side
    58,645.44x = 2,572,622,099.20
  5. Step 5: Solve for x
    x = 2,572,622,099.20/58,645.44
  6. Step 6: Final answer
    x = 43,867.39

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1.5x scale

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.