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Finding the Fourth Proportional to 62,435.25, 86,161.01 and 40,079.25

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Solution

The fourth proportional to 62,435.25, 86,161.01 and 40,079.25 is: 55,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,435.25 : 86,161.01 = 40,079.25 : x
  2. Step 2: Convert to fraction form
    62,435.25/86,161.01 = 40,079.25/x
  3. Step 3: Cross multiply
    62,435.25x = 86,161.01 × 40,079.25
  4. Step 4: Simplify right side
    62,435.25x = 3,453,268,459.65
  5. Step 5: Solve for x
    x = 3,453,268,459.65/62,435.25
  6. Step 6: Final answer
    x = 55,309.60

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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.