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Finding the Fourth Proportional to 65,922.94, 90,974.91 and 36,114.94

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Solution

The fourth proportional to 65,922.94, 90,974.91 and 36,114.94 is: 49,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,922.94 : 90,974.91 = 36,114.94 : x
  2. Step 2: Convert to fraction form
    65,922.94/90,974.91 = 36,114.94/x
  3. Step 3: Cross multiply
    65,922.94x = 90,974.91 × 36,114.94
  4. Step 4: Simplify right side
    65,922.94x = 3,285,553,416.16
  5. Step 5: Solve for x
    x = 3,285,553,416.16/65,922.94
  6. Step 6: Final answer
    x = 49,839.30

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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.