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Finding the Fourth Proportional to 8,370.54, 11,550.84 and 5,015.10

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Solution

The fourth proportional to 8,370.54, 11,550.84 and 5,015.10 is: 6,920.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.54 : 11,550.84 = 5,015.10 : x
  2. Step 2: Convert to fraction form
    8,370.54/11,550.84 = 5,015.10/x
  3. Step 3: Cross multiply
    8,370.54x = 11,550.84 × 5,015.10
  4. Step 4: Simplify right side
    8,370.54x = 57,928,617.68
  5. Step 5: Solve for x
    x = 57,928,617.68/8,370.54
  6. Step 6: Final answer
    x = 6,920.54

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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.