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Finding the Fourth Proportional to 86,760.84, 130,178.52 and 27,601.32

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Solution

The fourth proportional to 86,760.84, 130,178.52 and 27,601.32 is: 41,413.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,760.84 : 130,178.52 = 27,601.32 : x
  2. Step 2: Convert to fraction form
    86,760.84/130,178.52 = 27,601.32/x
  3. Step 3: Cross multiply
    86,760.84x = 130,178.52 × 27,601.32
  4. Step 4: Simplify right side
    86,760.84x = 3,593,098,987.65
  5. Step 5: Solve for x
    x = 3,593,098,987.65/86,760.84
  6. Step 6: Final answer
    x = 41,413.83

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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.