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Finding the Fourth Proportional to 4,687.91, 7,033.01 and 1,400.99

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Solution

The fourth proportional to 4,687.91, 7,033.01 and 1,400.99 is: 2,101.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.91 : 7,033.01 = 1,400.99 : x
  2. Step 2: Convert to fraction form
    4,687.91/7,033.01 = 1,400.99/x
  3. Step 3: Cross multiply
    4,687.91x = 7,033.01 × 1,400.99
  4. Step 4: Simplify right side
    4,687.91x = 9,853,134.51
  5. Step 5: Solve for x
    x = 9,853,134.51/4,687.91
  6. Step 6: Final answer
    x = 2,101.82

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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.