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Finding the Fourth Proportional to 22,647.72, 33,965.10 and 7,852.80

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Solution

The fourth proportional to 22,647.72, 33,965.10 and 7,852.80 is: 11,776.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,647.72 : 33,965.10 = 7,852.80 : x
  2. Step 2: Convert to fraction form
    22,647.72/33,965.10 = 7,852.80/x
  3. Step 3: Cross multiply
    22,647.72x = 33,965.10 × 7,852.80
  4. Step 4: Simplify right side
    22,647.72x = 266,721,137.28
  5. Step 5: Solve for x
    x = 266,721,137.28/22,647.72
  6. Step 6: Final answer
    x = 11,776.95

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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.