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Finding the Fourth Proportional to 54,015.40, 80,994.30 and 22,815.40

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Solution

The fourth proportional to 54,015.40, 80,994.30 and 22,815.40 is: 34,210.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,015.40 : 80,994.30 = 22,815.40 : x
  2. Step 2: Convert to fraction form
    54,015.40/80,994.30 = 22,815.40/x
  3. Step 3: Cross multiply
    54,015.40x = 80,994.30 × 22,815.40
  4. Step 4: Simplify right side
    54,015.40x = 1,847,917,352.22
  5. Step 5: Solve for x
    x = 1,847,917,352.22/54,015.40
  6. Step 6: Final answer
    x = 34,210.94

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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.