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Finding the Fourth Proportional to 18,551.52, 27,818.64 and 10,762.56

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Solution

The fourth proportional to 18,551.52, 27,818.64 and 10,762.56 is: 16,138.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.52 : 27,818.64 = 10,762.56 : x
  2. Step 2: Convert to fraction form
    18,551.52/27,818.64 = 10,762.56/x
  3. Step 3: Cross multiply
    18,551.52x = 27,818.64 × 10,762.56
  4. Step 4: Simplify right side
    18,551.52x = 299,399,782.12
  5. Step 5: Solve for x
    x = 299,399,782.12/18,551.52
  6. Step 6: Final answer
    x = 16,138.83

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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.