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Finding the Fourth Proportional to 3,752.85, 5,628.42 and 1,413.10

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Solution

The fourth proportional to 3,752.85, 5,628.42 and 1,413.10 is: 2,119.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752.85 : 5,628.42 = 1,413.10 : x
  2. Step 2: Convert to fraction form
    3,752.85/5,628.42 = 1,413.10/x
  3. Step 3: Cross multiply
    3,752.85x = 5,628.42 × 1,413.10
  4. Step 4: Simplify right side
    3,752.85x = 7,953,515.00
  5. Step 5: Solve for x
    x = 7,953,515.00/3,752.85
  6. Step 6: Final answer
    x = 2,119.33

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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.