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Finding the Fourth Proportional to 66,907.77, 100,361.81 and 22,565.66

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Solution

The fourth proportional to 66,907.77, 100,361.81 and 22,565.66 is: 33,848.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,907.77 : 100,361.81 = 22,565.66 : x
  2. Step 2: Convert to fraction form
    66,907.77/100,361.81 = 22,565.66/x
  3. Step 3: Cross multiply
    66,907.77x = 100,361.81 × 22,565.66
  4. Step 4: Simplify right side
    66,907.77x = 2,264,730,819.39
  5. Step 5: Solve for x
    x = 2,264,730,819.39/66,907.77
  6. Step 6: Final answer
    x = 33,848.55

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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.