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Finding the Fourth Proportional to 27,958.95, 38,579.04 and 16,628.22

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Solution

The fourth proportional to 27,958.95, 38,579.04 and 16,628.22 is: 22,944.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,958.95 : 38,579.04 = 16,628.22 : x
  2. Step 2: Convert to fraction form
    27,958.95/38,579.04 = 16,628.22/x
  3. Step 3: Cross multiply
    27,958.95x = 38,579.04 × 16,628.22
  4. Step 4: Simplify right side
    27,958.95x = 641,500,764.51
  5. Step 5: Solve for x
    x = 641,500,764.51/27,958.95
  6. Step 6: Final answer
    x = 22,944.38

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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.