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Finding the Fourth Proportional to 62,940.56, 86,860.04 and 34,648.40

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Solution

The fourth proportional to 62,940.56, 86,860.04 and 34,648.40 is: 47,815.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,940.56 : 86,860.04 = 34,648.40 : x
  2. Step 2: Convert to fraction form
    62,940.56/86,860.04 = 34,648.40/x
  3. Step 3: Cross multiply
    62,940.56x = 86,860.04 × 34,648.40
  4. Step 4: Simplify right side
    62,940.56x = 3,009,561,409.94
  5. Step 5: Solve for x
    x = 3,009,561,409.94/62,940.56
  6. Step 6: Final answer
    x = 47,815.93

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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.