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Finding the Fourth Proportional to 39,651.75, 59,477.67 and 11,949.75

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Solution

The fourth proportional to 39,651.75, 59,477.67 and 11,949.75 is: 17,924.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,651.75 : 59,477.67 = 11,949.75 : x
  2. Step 2: Convert to fraction form
    39,651.75/59,477.67 = 11,949.75/x
  3. Step 3: Cross multiply
    39,651.75x = 59,477.67 × 11,949.75
  4. Step 4: Simplify right side
    39,651.75x = 710,743,287.08
  5. Step 5: Solve for x
    x = 710,743,287.08/39,651.75
  6. Step 6: Final answer
    x = 17,924.64

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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.