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Finding the Fourth Proportional to 21,998.44, 33,001.15 and 7,957.02

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Solution

The fourth proportional to 21,998.44, 33,001.15 and 7,957.02 is: 11,936.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.44 : 33,001.15 = 7,957.02 : x
  2. Step 2: Convert to fraction form
    21,998.44/33,001.15 = 7,957.02/x
  3. Step 3: Cross multiply
    21,998.44x = 33,001.15 × 7,957.02
  4. Step 4: Simplify right side
    21,998.44x = 262,590,810.57
  5. Step 5: Solve for x
    x = 262,590,810.57/21,998.44
  6. Step 6: Final answer
    x = 11,936.79

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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.