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Finding the Fourth Proportional to 7,908.30, 10,908.18 and 6,226.92

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Solution

The fourth proportional to 7,908.30, 10,908.18 and 6,226.92 is: 8,589.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.30 : 10,908.18 = 6,226.92 : x
  2. Step 2: Convert to fraction form
    7,908.30/10,908.18 = 6,226.92/x
  3. Step 3: Cross multiply
    7,908.30x = 10,908.18 × 6,226.92
  4. Step 4: Simplify right side
    7,908.30x = 67,924,364.21
  5. Step 5: Solve for x
    x = 67,924,364.21/7,908.30
  6. Step 6: Final answer
    x = 8,589.00

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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.