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Finding the Fourth Proportional to 30,995.97, 46,531.77 and 20,474.98

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Solution

The fourth proportional to 30,995.97, 46,531.77 and 20,474.98 is: 30,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,995.97 : 46,531.77 = 20,474.98 : x
  2. Step 2: Convert to fraction form
    30,995.97/46,531.77 = 20,474.98/x
  3. Step 3: Cross multiply
    30,995.97x = 46,531.77 × 20,474.98
  4. Step 4: Simplify right side
    30,995.97x = 952,736,867.00
  5. Step 5: Solve for x
    x = 952,736,867.00/30,995.97
  6. Step 6: Final answer
    x = 30,737.45

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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.