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Finding the Fourth Proportional to 76,842.27, 115,290.54 and 26,936.28

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Solution

The fourth proportional to 76,842.27, 115,290.54 and 26,936.28 is: 40,413.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,842.27 : 115,290.54 = 26,936.28 : x
  2. Step 2: Convert to fraction form
    76,842.27/115,290.54 = 26,936.28/x
  3. Step 3: Cross multiply
    76,842.27x = 115,290.54 × 26,936.28
  4. Step 4: Simplify right side
    76,842.27x = 3,105,498,266.79
  5. Step 5: Solve for x
    x = 3,105,498,266.79/76,842.27
  6. Step 6: Final answer
    x = 40,413.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.