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Finding the Fourth Proportional to 7,614.92, 11,420.84 and 2,684.46

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Solution

The fourth proportional to 7,614.92, 11,420.84 and 2,684.46 is: 4,026.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,614.92 : 11,420.84 = 2,684.46 : x
  2. Step 2: Convert to fraction form
    7,614.92/11,420.84 = 2,684.46/x
  3. Step 3: Cross multiply
    7,614.92x = 11,420.84 × 2,684.46
  4. Step 4: Simplify right side
    7,614.92x = 30,658,788.15
  5. Step 5: Solve for x
    x = 30,658,788.15/7,614.92
  6. Step 6: Final answer
    x = 4,026.15

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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.