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Finding the Fourth Proportional to 18,574.08, 27,861.12 and 6,884.16

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Solution

The fourth proportional to 18,574.08, 27,861.12 and 6,884.16 is: 10,326.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,574.08 : 27,861.12 = 6,884.16 : x
  2. Step 2: Convert to fraction form
    18,574.08/27,861.12 = 6,884.16/x
  3. Step 3: Cross multiply
    18,574.08x = 27,861.12 × 6,884.16
  4. Step 4: Simplify right side
    18,574.08x = 191,800,407.86
  5. Step 5: Solve for x
    x = 191,800,407.86/18,574.08
  6. Step 6: Final answer
    x = 10,326.24

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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.