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Finding the Fourth Proportional to 2,325.63, 3,488.49 and 864.48

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Solution

The fourth proportional to 2,325.63, 3,488.49 and 864.48 is: 1,296.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,325.63 : 3,488.49 = 864.48 : x
  2. Step 2: Convert to fraction form
    2,325.63/3,488.49 = 864.48/x
  3. Step 3: Cross multiply
    2,325.63x = 3,488.49 × 864.48
  4. Step 4: Simplify right side
    2,325.63x = 3,015,729.84
  5. Step 5: Solve for x
    x = 3,015,729.84/2,325.63
  6. Step 6: Final answer
    x = 1,296.74

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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.