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Finding the Fourth Proportional to 27,979.39, 41,980.01 and 10,450.59

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Solution

The fourth proportional to 27,979.39, 41,980.01 and 10,450.59 is: 15,679.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,979.39 : 41,980.01 = 10,450.59 : x
  2. Step 2: Convert to fraction form
    27,979.39/41,980.01 = 10,450.59/x
  3. Step 3: Cross multiply
    27,979.39x = 41,980.01 × 10,450.59
  4. Step 4: Simplify right side
    27,979.39x = 438,715,751.20
  5. Step 5: Solve for x
    x = 438,715,751.20/27,979.39
  6. Step 6: Final answer
    x = 15,679.96

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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.