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Finding the Fourth Proportional to 18,776,108.16, 25,889,083.20 and 17,415,619.20

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Solution

The fourth proportional to 18,776,108.16, 25,889,083.20 and 17,415,619.20 is: 24,013,198.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776,108.16 : 25,889,083.20 = 17,415,619.20 : x
  2. Step 2: Convert to fraction form
    18,776,108.16/25,889,083.20 = 17,415,619.20/x
  3. Step 3: Cross multiply
    18,776,108.16x = 25,889,083.20 × 17,415,619.20
  4. Step 4: Simplify right side
    18,776,108.16x = 450,874,414,448,317.44
  5. Step 5: Solve for x
    x = 450,874,414,448,317.44/18,776,108.16
  6. Step 6: Final answer
    x = 24,013,198.61

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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.