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Finding the Fourth Proportional to 2,503.41, 3,755.93 and 859.92

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Solution

The fourth proportional to 2,503.41, 3,755.93 and 859.92 is: 1,290.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,503.41 : 3,755.93 = 859.92 : x
  2. Step 2: Convert to fraction form
    2,503.41/3,755.93 = 859.92/x
  3. Step 3: Cross multiply
    2,503.41x = 3,755.93 × 859.92
  4. Step 4: Simplify right side
    2,503.41x = 3,229,795.03
  5. Step 5: Solve for x
    x = 3,229,795.03/2,503.41
  6. Step 6: Final answer
    x = 1,290.16

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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.