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Finding the Fourth Proportional to 8,581.32, 11,842.38 and 4,855.32

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Solution

The fourth proportional to 8,581.32, 11,842.38 and 4,855.32 is: 6,700.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.32 : 11,842.38 = 4,855.32 : x
  2. Step 2: Convert to fraction form
    8,581.32/11,842.38 = 4,855.32/x
  3. Step 3: Cross multiply
    8,581.32x = 11,842.38 × 4,855.32
  4. Step 4: Simplify right side
    8,581.32x = 57,498,544.46
  5. Step 5: Solve for x
    x = 57,498,544.46/8,581.32
  6. Step 6: Final answer
    x = 6,700.43

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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.