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Finding the Fourth Proportional to 8,161.54, 11,260.16 and 4,803.28

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Solution

The fourth proportional to 8,161.54, 11,260.16 and 4,803.28 is: 6,626.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161.54 : 11,260.16 = 4,803.28 : x
  2. Step 2: Convert to fraction form
    8,161.54/11,260.16 = 4,803.28/x
  3. Step 3: Cross multiply
    8,161.54x = 11,260.16 × 4,803.28
  4. Step 4: Simplify right side
    8,161.54x = 54,085,677.31
  5. Step 5: Solve for x
    x = 54,085,677.31/8,161.54
  6. Step 6: Final answer
    x = 6,626.90

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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.