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Finding the Fourth Proportional to 22,008.88, 33,006.66 and 7,967.20

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Solution

The fourth proportional to 22,008.88, 33,006.66 and 7,967.20 is: 11,948.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,008.88 : 33,006.66 = 7,967.20 : x
  2. Step 2: Convert to fraction form
    22,008.88/33,006.66 = 7,967.20/x
  3. Step 3: Cross multiply
    22,008.88x = 33,006.66 × 7,967.20
  4. Step 4: Simplify right side
    22,008.88x = 262,970,661.55
  5. Step 5: Solve for x
    x = 262,970,661.55/22,008.88
  6. Step 6: Final answer
    x = 11,948.39

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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.