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Finding the Fourth Proportional to 53,604.54, 80,382.96 and 28,639.98

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Solution

The fourth proportional to 53,604.54, 80,382.96 and 28,639.98 is: 42,947.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,604.54 : 80,382.96 = 28,639.98 : x
  2. Step 2: Convert to fraction form
    53,604.54/80,382.96 = 28,639.98/x
  3. Step 3: Cross multiply
    53,604.54x = 80,382.96 × 28,639.98
  4. Step 4: Simplify right side
    53,604.54x = 2,302,166,366.74
  5. Step 5: Solve for x
    x = 2,302,166,366.74/53,604.54
  6. Step 6: Final answer
    x = 42,947.23

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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.