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Finding the Fourth Proportional to 18,646.00, 27,973.98 and 8,118.27

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Solution

The fourth proportional to 18,646.00, 27,973.98 and 8,118.27 is: 12,179.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,646.00 : 27,973.98 = 8,118.27 : x
  2. Step 2: Convert to fraction form
    18,646.00/27,973.98 = 8,118.27/x
  3. Step 3: Cross multiply
    18,646.00x = 27,973.98 × 8,118.27
  4. Step 4: Simplify right side
    18,646.00x = 227,100,322.61
  5. Step 5: Solve for x
    x = 227,100,322.61/18,646.00
  6. Step 6: Final answer
    x = 12,179.57

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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.