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Finding the Fourth Proportional to 18,976,691.63, 26,187,846.81 and 10,274,870.14

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Solution

The fourth proportional to 18,976,691.63, 26,187,846.81 and 10,274,870.14 is: 14,179,327.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976,691.63 : 26,187,846.81 = 10,274,870.14 : x
  2. Step 2: Convert to fraction form
    18,976,691.63/26,187,846.81 = 10,274,870.14/x
  3. Step 3: Cross multiply
    18,976,691.63x = 26,187,846.81 × 10,274,870.14
  4. Step 4: Simplify right side
    18,976,691.63x = 269,076,725,218,963.25
  5. Step 5: Solve for x
    x = 269,076,725,218,963.25/18,976,691.63
  6. Step 6: Final answer
    x = 14,179,327.49

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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.