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Finding the Fourth Proportional to 86,772.96, 130,159.44 and 27,608.76

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Solution

The fourth proportional to 86,772.96, 130,159.44 and 27,608.76 is: 41,413.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,772.96 : 130,159.44 = 27,608.76 : x
  2. Step 2: Convert to fraction form
    86,772.96/130,159.44 = 27,608.76/x
  3. Step 3: Cross multiply
    86,772.96x = 130,159.44 × 27,608.76
  4. Step 4: Simplify right side
    86,772.96x = 3,593,540,740.69
  5. Step 5: Solve for x
    x = 3,593,540,740.69/86,772.96
  6. Step 6: Final answer
    x = 41,413.14

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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.