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Finding the Fourth Proportional to 18,976,709.57, 26,187,871.56 and 10,274,888.07

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Solution

The fourth proportional to 18,976,709.57, 26,187,871.56 and 10,274,888.07 is: 14,179,352.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976,709.57 : 26,187,871.56 = 10,274,888.07 : x
  2. Step 2: Convert to fraction form
    18,976,709.57/26,187,871.56 = 10,274,888.07/x
  3. Step 3: Cross multiply
    18,976,709.57x = 26,187,871.56 × 10,274,888.07
  4. Step 4: Simplify right side
    18,976,709.57x = 269,077,449,032,005.44
  5. Step 5: Solve for x
    x = 269,077,449,032,005.44/18,976,709.57
  6. Step 6: Final answer
    x = 14,179,352.23

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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.