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Finding the Fourth Proportional to 22,006.49, 33,006.29 and 7,215.08

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Solution

The fourth proportional to 22,006.49, 33,006.29 and 7,215.08 is: 10,821.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,006.49 : 33,006.29 = 7,215.08 : x
  2. Step 2: Convert to fraction form
    22,006.49/33,006.29 = 7,215.08/x
  3. Step 3: Cross multiply
    22,006.49x = 33,006.29 × 7,215.08
  4. Step 4: Simplify right side
    22,006.49x = 238,142,821.75
  5. Step 5: Solve for x
    x = 238,142,821.75/22,006.49
  6. Step 6: Final answer
    x = 10,821.48

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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.