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Finding the Fourth Proportional to 3,362.40, 5,042.16 and 1,052.64

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Solution

The fourth proportional to 3,362.40, 5,042.16 and 1,052.64 is: 1,578.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,362.40 : 5,042.16 = 1,052.64 : x
  2. Step 2: Convert to fraction form
    3,362.40/5,042.16 = 1,052.64/x
  3. Step 3: Cross multiply
    3,362.40x = 5,042.16 × 1,052.64
  4. Step 4: Simplify right side
    3,362.40x = 5,307,579.30
  5. Step 5: Solve for x
    x = 5,307,579.30/3,362.40
  6. Step 6: Final answer
    x = 1,578.51

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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.