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Finding the Fourth Proportional to 30,905.74, 46,361.34 and 16,859.73

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Solution

The fourth proportional to 30,905.74, 46,361.34 and 16,859.73 is: 25,291.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,905.74 : 46,361.34 = 16,859.73 : x
  2. Step 2: Convert to fraction form
    30,905.74/46,361.34 = 16,859.73/x
  3. Step 3: Cross multiply
    30,905.74x = 46,361.34 × 16,859.73
  4. Step 4: Simplify right side
    30,905.74x = 781,639,540.49
  5. Step 5: Solve for x
    x = 781,639,540.49/30,905.74
  6. Step 6: Final answer
    x = 25,291.08

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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.