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Finding the Fourth Proportional to 7,614.54, 11,421.79 and 2,682.99

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Solution

The fourth proportional to 7,614.54, 11,421.79 and 2,682.99 is: 4,024.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,614.54 : 11,421.79 = 2,682.99 : x
  2. Step 2: Convert to fraction form
    7,614.54/11,421.79 = 2,682.99/x
  3. Step 3: Cross multiply
    7,614.54x = 11,421.79 × 2,682.99
  4. Step 4: Simplify right side
    7,614.54x = 30,644,541.64
  5. Step 5: Solve for x
    x = 30,644,541.64/7,614.54
  6. Step 6: Final answer
    x = 4,024.48

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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.