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Finding the Fourth Proportional to 18,300.76, 27,451.16 and 4,449.76

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Solution

The fourth proportional to 18,300.76, 27,451.16 and 4,449.76 is: 6,674.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,300.76 : 27,451.16 = 4,449.76 : x
  2. Step 2: Convert to fraction form
    18,300.76/27,451.16 = 4,449.76/x
  3. Step 3: Cross multiply
    18,300.76x = 27,451.16 × 4,449.76
  4. Step 4: Simplify right side
    18,300.76x = 122,151,073.72
  5. Step 5: Solve for x
    x = 122,151,073.72/18,300.76
  6. Step 6: Final answer
    x = 6,674.64

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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.