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Finding the Fourth Proportional to 2,740.54, 4,110.60 and 1,009

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Solution

The fourth proportional to 2,740.54, 4,110.60 and 1,009 is: 1,513.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.54 : 4,110.60 = 1,009 : x
  2. Step 2: Convert to fraction form
    2,740.54/4,110.60 = 1,009/x
  3. Step 3: Cross multiply
    2,740.54x = 4,110.60 × 1,009
  4. Step 4: Simplify right side
    2,740.54x = 4,147,595.40
  5. Step 5: Solve for x
    x = 4,147,595.40/2,740.54
  6. Step 6: Final answer
    x = 1,513.42

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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.