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Finding the Fourth Proportional to 6,018.88, 9,005.74 and 4,979.38

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Solution

The fourth proportional to 6,018.88, 9,005.74 and 4,979.38 is: 7,450.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,018.88 : 9,005.74 = 4,979.38 : x
  2. Step 2: Convert to fraction form
    6,018.88/9,005.74 = 4,979.38/x
  3. Step 3: Cross multiply
    6,018.88x = 9,005.74 × 4,979.38
  4. Step 4: Simplify right side
    6,018.88x = 44,843,001.64
  5. Step 5: Solve for x
    x = 44,843,001.64/6,018.88
  6. Step 6: Final answer
    x = 7,450.39

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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.