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Finding the Fourth Proportional to 62,586.45, 86,368.73 and 33,905.45

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Solution

The fourth proportional to 62,586.45, 86,368.73 and 33,905.45 is: 46,789.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,586.45 : 86,368.73 = 33,905.45 : x
  2. Step 2: Convert to fraction form
    62,586.45/86,368.73 = 33,905.45/x
  3. Step 3: Cross multiply
    62,586.45x = 86,368.73 × 33,905.45
  4. Step 4: Simplify right side
    62,586.45x = 2,928,370,702.97
  5. Step 5: Solve for x
    x = 2,928,370,702.97/62,586.45
  6. Step 6: Final answer
    x = 46,789.21

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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.