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Finding the Fourth Proportional to 58,496.87, 80,725.44 and 31,639.32

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Solution

The fourth proportional to 58,496.87, 80,725.44 and 31,639.32 is: 43,662.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,496.87 : 80,725.44 = 31,639.32 : x
  2. Step 2: Convert to fraction form
    58,496.87/80,725.44 = 31,639.32/x
  3. Step 3: Cross multiply
    58,496.87x = 80,725.44 × 31,639.32
  4. Step 4: Simplify right side
    58,496.87x = 2,554,097,466.48
  5. Step 5: Solve for x
    x = 2,554,097,466.48/58,496.87
  6. Step 6: Final answer
    x = 43,662.12

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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.