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Finding the Fourth Proportional to 62,585.82, 86,367.78 and 34,290.90

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Solution

The fourth proportional to 62,585.82, 86,367.78 and 34,290.90 is: 47,321.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,585.82 : 86,367.78 = 34,290.90 : x
  2. Step 2: Convert to fraction form
    62,585.82/86,367.78 = 34,290.90/x
  3. Step 3: Cross multiply
    62,585.82x = 86,367.78 × 34,290.90
  4. Step 4: Simplify right side
    62,585.82x = 2,961,628,907.20
  5. Step 5: Solve for x
    x = 2,961,628,907.20/62,585.82
  6. Step 6: Final answer
    x = 47,321.08

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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.