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Finding the Fourth Proportional to 27,311.10, 40,966.65 and 9,782.70

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Solution

The fourth proportional to 27,311.10, 40,966.65 and 9,782.70 is: 14,674.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,311.10 : 40,966.65 = 9,782.70 : x
  2. Step 2: Convert to fraction form
    27,311.10/40,966.65 = 9,782.70/x
  3. Step 3: Cross multiply
    27,311.10x = 40,966.65 × 9,782.70
  4. Step 4: Simplify right side
    27,311.10x = 400,764,446.96
  5. Step 5: Solve for x
    x = 400,764,446.96/27,311.10
  6. Step 6: Final answer
    x = 14,674.05

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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.