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Finding the Fourth Proportional to 1,765.50, 2,648.97 and 1,302.54

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Solution

The fourth proportional to 1,765.50, 2,648.97 and 1,302.54 is: 1,954.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,765.50 : 2,648.97 = 1,302.54 : x
  2. Step 2: Convert to fraction form
    1,765.50/2,648.97 = 1,302.54/x
  3. Step 3: Cross multiply
    1,765.50x = 2,648.97 × 1,302.54
  4. Step 4: Simplify right side
    1,765.50x = 3,450,389.38
  5. Step 5: Solve for x
    x = 3,450,389.38/1,765.50
  6. Step 6: Final answer
    x = 1,954.34

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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.