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Finding the Fourth Proportional to 66,893.54, 100,355.67 and 22,519.11

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Solution

The fourth proportional to 66,893.54, 100,355.67 and 22,519.11 is: 33,783.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,893.54 : 100,355.67 = 22,519.11 : x
  2. Step 2: Convert to fraction form
    66,893.54/100,355.67 = 22,519.11/x
  3. Step 3: Cross multiply
    66,893.54x = 100,355.67 × 22,519.11
  4. Step 4: Simplify right side
    66,893.54x = 2,259,920,259.26
  5. Step 5: Solve for x
    x = 2,259,920,259.26/66,893.54
  6. Step 6: Final answer
    x = 33,783.83

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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.