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Finding the Fourth Proportional to 4,608.97, 6,914.47 and 1,321.81

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Solution

The fourth proportional to 4,608.97, 6,914.47 and 1,321.81 is: 1,983.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,608.97 : 6,914.47 = 1,321.81 : x
  2. Step 2: Convert to fraction form
    4,608.97/6,914.47 = 1,321.81/x
  3. Step 3: Cross multiply
    4,608.97x = 6,914.47 × 1,321.81
  4. Step 4: Simplify right side
    4,608.97x = 9,139,582.67
  5. Step 5: Solve for x
    x = 9,139,582.67/4,608.97
  6. Step 6: Final answer
    x = 1,983.00

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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.