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Finding the Fourth Proportional to 19,092.94, 28,633.88 and 7,999.32

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Solution

The fourth proportional to 19,092.94, 28,633.88 and 7,999.32 is: 11,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,092.94 : 28,633.88 = 7,999.32 : x
  2. Step 2: Convert to fraction form
    19,092.94/28,633.88 = 7,999.32/x
  3. Step 3: Cross multiply
    19,092.94x = 28,633.88 × 7,999.32
  4. Step 4: Simplify right side
    19,092.94x = 229,051,385.80
  5. Step 5: Solve for x
    x = 229,051,385.80/19,092.94
  6. Step 6: Final answer
    x = 11,996.65

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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.