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Finding the Fourth Proportional to 1,365.02, 1,883.69 and 744.02

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Solution

The fourth proportional to 1,365.02, 1,883.69 and 744.02 is: 1,026.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365.02 : 1,883.69 = 744.02 : x
  2. Step 2: Convert to fraction form
    1,365.02/1,883.69 = 744.02/x
  3. Step 3: Cross multiply
    1,365.02x = 1,883.69 × 744.02
  4. Step 4: Simplify right side
    1,365.02x = 1,401,503.03
  5. Step 5: Solve for x
    x = 1,401,503.03/1,365.02
  6. Step 6: Final answer
    x = 1,026.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.