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Finding the Fourth Proportional to 66,941.40, 100,406.66 and 22,567.20

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Solution

The fourth proportional to 66,941.40, 100,406.66 and 22,567.20 is: 33,848.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,941.40 : 100,406.66 = 22,567.20 : x
  2. Step 2: Convert to fraction form
    66,941.40/100,406.66 = 22,567.20/x
  3. Step 3: Cross multiply
    66,941.40x = 100,406.66 × 22,567.20
  4. Step 4: Simplify right side
    66,941.40x = 2,265,897,177.55
  5. Step 5: Solve for x
    x = 2,265,897,177.55/66,941.40
  6. Step 6: Final answer
    x = 33,848.97

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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.