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Finding the Fourth Proportional to 62,709.92, 86,539.25 and 34,028.86

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Solution

The fourth proportional to 62,709.92, 86,539.25 and 34,028.86 is: 46,959.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,709.92 : 86,539.25 = 34,028.86 : x
  2. Step 2: Convert to fraction form
    62,709.92/86,539.25 = 34,028.86/x
  3. Step 3: Cross multiply
    62,709.92x = 86,539.25 × 34,028.86
  4. Step 4: Simplify right side
    62,709.92x = 2,944,831,590.06
  5. Step 5: Solve for x
    x = 2,944,831,590.06/62,709.92
  6. Step 6: Final answer
    x = 46,959.58

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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.