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Finding the Fourth Proportional to 8,553.16, 12,819.24 and 4,858.48

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Solution

The fourth proportional to 8,553.16, 12,819.24 and 4,858.48 is: 7,281.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.16 : 12,819.24 = 4,858.48 : x
  2. Step 2: Convert to fraction form
    8,553.16/12,819.24 = 4,858.48/x
  3. Step 3: Cross multiply
    8,553.16x = 12,819.24 × 4,858.48
  4. Step 4: Simplify right side
    8,553.16x = 62,282,021.16
  5. Step 5: Solve for x
    x = 62,282,021.16/8,553.16
  6. Step 6: Final answer
    x = 7,281.76

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1.5x scale

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.