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Finding the Fourth Proportional to 19,608.09, 27,058.70 and 10,993.70

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Solution

The fourth proportional to 19,608.09, 27,058.70 and 10,993.70 is: 15,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,608.09 : 27,058.70 = 10,993.70 : x
  2. Step 2: Convert to fraction form
    19,608.09/27,058.70 = 10,993.70/x
  3. Step 3: Cross multiply
    19,608.09x = 27,058.70 × 10,993.70
  4. Step 4: Simplify right side
    19,608.09x = 297,475,276.27
  5. Step 5: Solve for x
    x = 297,475,276.27/19,608.09
  6. Step 6: Final answer
    x = 15,171.05

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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.