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Finding the Fourth Proportional to 16,916,644.36, 23,344,994.82 and 9,181,689.48

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Solution

The fourth proportional to 16,916,644.36, 23,344,994.82 and 9,181,689.48 is: 12,670,745.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,916,644.36 : 23,344,994.82 = 9,181,689.48 : x
  2. Step 2: Convert to fraction form
    16,916,644.36/23,344,994.82 = 9,181,689.48/x
  3. Step 3: Cross multiply
    16,916,644.36x = 23,344,994.82 × 9,181,689.48
  4. Step 4: Simplify right side
    16,916,644.36x = 214,346,493,349,448.50
  5. Step 5: Solve for x
    x = 214,346,493,349,448.50/16,916,644.36
  6. Step 6: Final answer
    x = 12,670,745.38

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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.