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Finding the Fourth Proportional to 7,660.79, 11,492.16 and 2,730.92

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Solution

The fourth proportional to 7,660.79, 11,492.16 and 2,730.92 is: 4,096.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,660.79 : 11,492.16 = 2,730.92 : x
  2. Step 2: Convert to fraction form
    7,660.79/11,492.16 = 2,730.92/x
  3. Step 3: Cross multiply
    7,660.79x = 11,492.16 × 2,730.92
  4. Step 4: Simplify right side
    7,660.79x = 31,384,169.59
  5. Step 5: Solve for x
    x = 31,384,169.59/7,660.79
  6. Step 6: Final answer
    x = 4,096.73

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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.