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Finding the Fourth Proportional to 27,959.95, 38,580.42 and 16,629.22

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Solution

The fourth proportional to 27,959.95, 38,580.42 and 16,629.22 is: 22,945.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,959.95 : 38,580.42 = 16,629.22 : x
  2. Step 2: Convert to fraction form
    27,959.95/38,580.42 = 16,629.22/x
  3. Step 3: Cross multiply
    27,959.95x = 38,580.42 × 16,629.22
  4. Step 4: Simplify right side
    27,959.95x = 641,562,291.87
  5. Step 5: Solve for x
    x = 641,562,291.87/27,959.95
  6. Step 6: Final answer
    x = 22,945.76

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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.