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Finding the Fourth Proportional to 11,978,590.56, 17,967,623.40 and 3,342,460.92

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Solution

The fourth proportional to 11,978,590.56, 17,967,623.40 and 3,342,460.92 is: 5,013,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,978,590.56 : 17,967,623.40 = 3,342,460.92 : x
  2. Step 2: Convert to fraction form
    11,978,590.56/17,967,623.40 = 3,342,460.92/x
  3. Step 3: Cross multiply
    11,978,590.56x = 17,967,623.40 × 3,342,460.92
  4. Step 4: Simplify right side
    11,978,590.56x = 60,056,079,039,777.52
  5. Step 5: Solve for x
    x = 60,056,079,039,777.52/11,978,590.56
  6. Step 6: Final answer
    x = 5,013,618.15

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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.