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Finding the Fourth Proportional to 39,102.66, 58,662.19 and 16,919.19

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Solution

The fourth proportional to 39,102.66, 58,662.19 and 16,919.19 is: 25,382.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,102.66 : 58,662.19 = 16,919.19 : x
  2. Step 2: Convert to fraction form
    39,102.66/58,662.19 = 16,919.19/x
  3. Step 3: Cross multiply
    39,102.66x = 58,662.19 × 16,919.19
  4. Step 4: Simplify right side
    39,102.66x = 992,516,738.43
  5. Step 5: Solve for x
    x = 992,516,738.43/39,102.66
  6. Step 6: Final answer
    x = 25,382.33

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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.