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Finding the Fourth Proportional to 4,816.53, 7,224.78 and 1,815.13

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Solution

The fourth proportional to 4,816.53, 7,224.78 and 1,815.13 is: 2,722.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,816.53 : 7,224.78 = 1,815.13 : x
  2. Step 2: Convert to fraction form
    4,816.53/7,224.78 = 1,815.13/x
  3. Step 3: Cross multiply
    4,816.53x = 7,224.78 × 1,815.13
  4. Step 4: Simplify right side
    4,816.53x = 13,113,914.92
  5. Step 5: Solve for x
    x = 13,113,914.92/4,816.53
  6. Step 6: Final answer
    x = 2,722.69

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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.