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Finding the Fourth Proportional to 38,622,731.60, 57,978,334.20 and 22,675,365.20

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Solution

The fourth proportional to 38,622,731.60, 57,978,334.20 and 22,675,365.20 is: 34,039,019.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,622,731.60 : 57,978,334.20 = 22,675,365.20 : x
  2. Step 2: Convert to fraction form
    38,622,731.60/57,978,334.20 = 22,675,365.20/x
  3. Step 3: Cross multiply
    38,622,731.60x = 57,978,334.20 × 22,675,365.20
  4. Step 4: Simplify right side
    38,622,731.60x = 1,314,679,901,672,649.75
  5. Step 5: Solve for x
    x = 1,314,679,901,672,649.75/38,622,731.60
  6. Step 6: Final answer
    x = 34,039,019.18

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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.