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Finding the Fourth Proportional to 5,921.99, 8,883.86 and 1,971.95

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Solution

The fourth proportional to 5,921.99, 8,883.86 and 1,971.95 is: 2,958.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.99 : 8,883.86 = 1,971.95 : x
  2. Step 2: Convert to fraction form
    5,921.99/8,883.86 = 1,971.95/x
  3. Step 3: Cross multiply
    5,921.99x = 8,883.86 × 1,971.95
  4. Step 4: Simplify right side
    5,921.99x = 17,518,540.08
  5. Step 5: Solve for x
    x = 17,518,540.08/5,921.99
  6. Step 6: Final answer
    x = 2,958.22

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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.