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Finding the Fourth Proportional to 84,698.82, 126,878.83 and 50,946.20

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Solution

The fourth proportional to 84,698.82, 126,878.83 and 50,946.20 is: 76,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,698.82 : 126,878.83 = 50,946.20 : x
  2. Step 2: Convert to fraction form
    84,698.82/126,878.83 = 50,946.20/x
  3. Step 3: Cross multiply
    84,698.82x = 126,878.83 × 50,946.20
  4. Step 4: Simplify right side
    84,698.82x = 6,463,993,487.19
  5. Step 5: Solve for x
    x = 6,463,993,487.19/84,698.82
  6. Step 6: Final answer
    x = 76,317.40

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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.