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Finding the Fourth Proportional to 62,976.06, 86,907.06 and 34,681.80

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Solution

The fourth proportional to 62,976.06, 86,907.06 and 34,681.80 is: 47,860.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,976.06 : 86,907.06 = 34,681.80 : x
  2. Step 2: Convert to fraction form
    62,976.06/86,907.06 = 34,681.80/x
  3. Step 3: Cross multiply
    62,976.06x = 86,907.06 × 34,681.80
  4. Step 4: Simplify right side
    62,976.06x = 3,014,093,273.51
  5. Step 5: Solve for x
    x = 3,014,093,273.51/62,976.06
  6. Step 6: Final answer
    x = 47,860.94

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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.