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Finding the Fourth Proportional to 66,681.01, 100,035.17 and 22,308.15

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Solution

The fourth proportional to 66,681.01, 100,035.17 and 22,308.15 is: 33,466.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,681.01 : 100,035.17 = 22,308.15 : x
  2. Step 2: Convert to fraction form
    66,681.01/100,035.17 = 22,308.15/x
  3. Step 3: Cross multiply
    66,681.01x = 100,035.17 × 22,308.15
  4. Step 4: Simplify right side
    66,681.01x = 2,231,599,577.64
  5. Step 5: Solve for x
    x = 2,231,599,577.64/66,681.01
  6. Step 6: Final answer
    x = 33,466.79

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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.