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Finding the Fourth Proportional to 7,338.40, 11,007.60 and 2,073.40

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Solution

The fourth proportional to 7,338.40, 11,007.60 and 2,073.40 is: 3,110.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.40 : 11,007.60 = 2,073.40 : x
  2. Step 2: Convert to fraction form
    7,338.40/11,007.60 = 2,073.40/x
  3. Step 3: Cross multiply
    7,338.40x = 11,007.60 × 2,073.40
  4. Step 4: Simplify right side
    7,338.40x = 22,823,157.84
  5. Step 5: Solve for x
    x = 22,823,157.84/7,338.40
  6. Step 6: Final answer
    x = 3,110.10

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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.