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Finding the Fourth Proportional to 8,418.68, 11,616.84 and 5,060.84

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Solution

The fourth proportional to 8,418.68, 11,616.84 and 5,060.84 is: 6,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.68 : 11,616.84 = 5,060.84 : x
  2. Step 2: Convert to fraction form
    8,418.68/11,616.84 = 5,060.84/x
  3. Step 3: Cross multiply
    8,418.68x = 11,616.84 × 5,060.84
  4. Step 4: Simplify right side
    8,418.68x = 58,790,968.55
  5. Step 5: Solve for x
    x = 58,790,968.55/8,418.68
  6. Step 6: Final answer
    x = 6,983.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.