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Finding the Fourth Proportional to 8,926.48, 13,389.04 and 3,379.32

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Solution

The fourth proportional to 8,926.48, 13,389.04 and 3,379.32 is: 5,068.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,926.48 : 13,389.04 = 3,379.32 : x
  2. Step 2: Convert to fraction form
    8,926.48/13,389.04 = 3,379.32/x
  3. Step 3: Cross multiply
    8,926.48x = 13,389.04 × 3,379.32
  4. Step 4: Simplify right side
    8,926.48x = 45,245,850.65
  5. Step 5: Solve for x
    x = 45,245,850.65/8,926.48
  6. Step 6: Final answer
    x = 5,068.72

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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.