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Finding the Fourth Proportional to 22,001.90, 33,002.86 and 7,959.31

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Solution

The fourth proportional to 22,001.90, 33,002.86 and 7,959.31 is: 11,938.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,001.90 : 33,002.86 = 7,959.31 : x
  2. Step 2: Convert to fraction form
    22,001.90/33,002.86 = 7,959.31/x
  3. Step 3: Cross multiply
    22,001.90x = 33,002.86 × 7,959.31
  4. Step 4: Simplify right side
    22,001.90x = 262,680,058.21
  5. Step 5: Solve for x
    x = 262,680,058.21/22,001.90
  6. Step 6: Final answer
    x = 11,938.97

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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.