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Finding the Fourth Proportional to 18,816.24, 28,226.28 and 4,965.24

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Solution

The fourth proportional to 18,816.24, 28,226.28 and 4,965.24 is: 7,448.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.24 : 28,226.28 = 4,965.24 : x
  2. Step 2: Convert to fraction form
    18,816.24/28,226.28 = 4,965.24/x
  3. Step 3: Cross multiply
    18,816.24x = 28,226.28 × 4,965.24
  4. Step 4: Simplify right side
    18,816.24x = 140,150,254.51
  5. Step 5: Solve for x
    x = 140,150,254.51/18,816.24
  6. Step 6: Final answer
    x = 7,448.37

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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.