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Finding the Fourth Proportional to 62,987.75, 86,923.09 and 34,693.44

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Solution

The fourth proportional to 62,987.75, 86,923.09 and 34,693.44 is: 47,876.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,987.75 : 86,923.09 = 34,693.44 : x
  2. Step 2: Convert to fraction form
    62,987.75/86,923.09 = 34,693.44/x
  3. Step 3: Cross multiply
    62,987.75x = 86,923.09 × 34,693.44
  4. Step 4: Simplify right side
    62,987.75x = 3,015,660,399.45
  5. Step 5: Solve for x
    x = 3,015,660,399.45/62,987.75
  6. Step 6: Final answer
    x = 47,876.94

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1.5x scale

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.