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Finding the Fourth Proportional to 80,365.82, 110,995.61 and 54,828.32

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Solution

The fourth proportional to 80,365.82, 110,995.61 and 54,828.32 is: 75,725.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,365.82 : 110,995.61 = 54,828.32 : x
  2. Step 2: Convert to fraction form
    80,365.82/110,995.61 = 54,828.32/x
  3. Step 3: Cross multiply
    80,365.82x = 110,995.61 × 54,828.32
  4. Step 4: Simplify right side
    80,365.82x = 6,085,701,994.56
  5. Step 5: Solve for x
    x = 6,085,701,994.56/80,365.82
  6. Step 6: Final answer
    x = 75,725.01

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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.