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Finding the Fourth Proportional to 31,339.98, 46,891.31 and 19,334.97

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Solution

The fourth proportional to 31,339.98, 46,891.31 and 19,334.97 is: 28,929.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,339.98 : 46,891.31 = 19,334.97 : x
  2. Step 2: Convert to fraction form
    31,339.98/46,891.31 = 19,334.97/x
  3. Step 3: Cross multiply
    31,339.98x = 46,891.31 × 19,334.97
  4. Step 4: Simplify right side
    31,339.98x = 906,641,975.44
  5. Step 5: Solve for x
    x = 906,641,975.44/31,339.98
  6. Step 6: Final answer
    x = 28,929.25

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1.5x scale

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.