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Finding the Fourth Proportional to 2,599.99, 3,894.81 and 2,387.36

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Solution

The fourth proportional to 2,599.99, 3,894.81 and 2,387.36 is: 3,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.99 : 3,894.81 = 2,387.36 : x
  2. Step 2: Convert to fraction form
    2,599.99/3,894.81 = 2,387.36/x
  3. Step 3: Cross multiply
    2,599.99x = 3,894.81 × 2,387.36
  4. Step 4: Simplify right side
    2,599.99x = 9,298,313.60
  5. Step 5: Solve for x
    x = 9,298,313.60/2,599.99
  6. Step 6: Final answer
    x = 3,576.29

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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.