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Finding the Fourth Proportional to 66,911.58, 100,364.14 and 22,540.10

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Solution

The fourth proportional to 66,911.58, 100,364.14 and 22,540.10 is: 33,809.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,911.58 : 100,364.14 = 22,540.10 : x
  2. Step 2: Convert to fraction form
    66,911.58/100,364.14 = 22,540.10/x
  3. Step 3: Cross multiply
    66,911.58x = 100,364.14 × 22,540.10
  4. Step 4: Simplify right side
    66,911.58x = 2,262,217,752.01
  5. Step 5: Solve for x
    x = 2,262,217,752.01/66,911.58
  6. Step 6: Final answer
    x = 33,809.06

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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.