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Finding the Fourth Proportional to 31,205.87, 43,063.88 and 17,058.74

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Solution

The fourth proportional to 31,205.87, 43,063.88 and 17,058.74 is: 23,540.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,205.87 : 43,063.88 = 17,058.74 : x
  2. Step 2: Convert to fraction form
    31,205.87/43,063.88 = 17,058.74/x
  3. Step 3: Cross multiply
    31,205.87x = 43,063.88 × 17,058.74
  4. Step 4: Simplify right side
    31,205.87x = 734,615,554.68
  5. Step 5: Solve for x
    x = 734,615,554.68/31,205.87
  6. Step 6: Final answer
    x = 23,540.95

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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.