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Finding the Fourth Proportional to 62,442.90, 86,165.37 and 35,591.40

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Solution

The fourth proportional to 62,442.90, 86,165.37 and 35,591.40 is: 49,112.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,442.90 : 86,165.37 = 35,591.40 : x
  2. Step 2: Convert to fraction form
    62,442.90/86,165.37 = 35,591.40/x
  3. Step 3: Cross multiply
    62,442.90x = 86,165.37 × 35,591.40
  4. Step 4: Simplify right side
    62,442.90x = 3,066,746,149.82
  5. Step 5: Solve for x
    x = 3,066,746,149.82/62,442.90
  6. Step 6: Final answer
    x = 49,112.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.