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Finding the Fourth Proportional to 17,177.63, 25,765.77 and 7,179.79

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Solution

The fourth proportional to 17,177.63, 25,765.77 and 7,179.79 is: 10,769.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,177.63 : 25,765.77 = 7,179.79 : x
  2. Step 2: Convert to fraction form
    17,177.63/25,765.77 = 7,179.79/x
  3. Step 3: Cross multiply
    17,177.63x = 25,765.77 × 7,179.79
  4. Step 4: Simplify right side
    17,177.63x = 184,992,823.07
  5. Step 5: Solve for x
    x = 184,992,823.07/17,177.63
  6. Step 6: Final answer
    x = 10,769.41

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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.