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Finding the Fourth Proportional to 22,008.40, 33,005.40 and 8,155.60

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Solution

The fourth proportional to 22,008.40, 33,005.40 and 8,155.60 is: 12,230.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,008.40 : 33,005.40 = 8,155.60 : x
  2. Step 2: Convert to fraction form
    22,008.40/33,005.40 = 8,155.60/x
  3. Step 3: Cross multiply
    22,008.40x = 33,005.40 × 8,155.60
  4. Step 4: Simplify right side
    22,008.40x = 269,178,840.24
  5. Step 5: Solve for x
    x = 269,178,840.24/22,008.40
  6. Step 6: Final answer
    x = 12,230.73

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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.