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Finding the Fourth Proportional to 1,352.02, 2,025.75 and 658.51

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Solution

The fourth proportional to 1,352.02, 2,025.75 and 658.51 is: 986.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.02 : 2,025.75 = 658.51 : x
  2. Step 2: Convert to fraction form
    1,352.02/2,025.75 = 658.51/x
  3. Step 3: Cross multiply
    1,352.02x = 2,025.75 × 658.51
  4. Step 4: Simplify right side
    1,352.02x = 1,333,976.63
  5. Step 5: Solve for x
    x = 1,333,976.63/1,352.02
  6. Step 6: Final answer
    x = 986.65

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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.