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Finding the Fourth Proportional to 66,726.90, 100,090.41 and 27,284.01

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Solution

The fourth proportional to 66,726.90, 100,090.41 and 27,284.01 is: 40,926.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,726.90 : 100,090.41 = 27,284.01 : x
  2. Step 2: Convert to fraction form
    66,726.90/100,090.41 = 27,284.01/x
  3. Step 3: Cross multiply
    66,726.90x = 100,090.41 × 27,284.01
  4. Step 4: Simplify right side
    66,726.90x = 2,730,867,747.34
  5. Step 5: Solve for x
    x = 2,730,867,747.34/66,726.90
  6. Step 6: Final answer
    x = 40,926.04

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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.