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Finding the Fourth Proportional to 8,379.93, 12,570.48 and 2,536.98

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Solution

The fourth proportional to 8,379.93, 12,570.48 and 2,536.98 is: 3,805.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.93 : 12,570.48 = 2,536.98 : x
  2. Step 2: Convert to fraction form
    8,379.93/12,570.48 = 2,536.98/x
  3. Step 3: Cross multiply
    8,379.93x = 12,570.48 × 2,536.98
  4. Step 4: Simplify right side
    8,379.93x = 31,891,056.35
  5. Step 5: Solve for x
    x = 31,891,056.35/8,379.93
  6. Step 6: Final answer
    x = 3,805.65

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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.