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Finding the Fourth Proportional to 18,559.21, 27,848.39 and 8,699.49

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Solution

The fourth proportional to 18,559.21, 27,848.39 and 8,699.49 is: 13,053.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,559.21 : 27,848.39 = 8,699.49 : x
  2. Step 2: Convert to fraction form
    18,559.21/27,848.39 = 8,699.49/x
  3. Step 3: Cross multiply
    18,559.21x = 27,848.39 × 8,699.49
  4. Step 4: Simplify right side
    18,559.21x = 242,266,790.32
  5. Step 5: Solve for x
    x = 242,266,790.32/18,559.21
  6. Step 6: Final answer
    x = 13,053.72

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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.