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Finding the Fourth Proportional to 3,888.83, 5,363.87 and 3,760.26

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Solution

The fourth proportional to 3,888.83, 5,363.87 and 3,760.26 is: 5,186.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.83 : 5,363.87 = 3,760.26 : x
  2. Step 2: Convert to fraction form
    3,888.83/5,363.87 = 3,760.26/x
  3. Step 3: Cross multiply
    3,888.83x = 5,363.87 × 3,760.26
  4. Step 4: Simplify right side
    3,888.83x = 20,169,527.00
  5. Step 5: Solve for x
    x = 20,169,527.00/3,888.83
  6. Step 6: Final answer
    x = 5,186.54

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1.5x scale

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.