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Finding the Fourth Proportional to 17,603,363.60, 26,405,045.40 and 11,892,669.20

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Solution

The fourth proportional to 17,603,363.60, 26,405,045.40 and 11,892,669.20 is: 17,839,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,603,363.60 : 26,405,045.40 = 11,892,669.20 : x
  2. Step 2: Convert to fraction form
    17,603,363.60/26,405,045.40 = 11,892,669.20/x
  3. Step 3: Cross multiply
    17,603,363.60x = 26,405,045.40 × 11,892,669.20
  4. Step 4: Simplify right side
    17,603,363.60x = 314,026,470,153,181.62
  5. Step 5: Solve for x
    x = 314,026,470,153,181.62/17,603,363.60
  6. Step 6: Final answer
    x = 17,839,003.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.