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Finding the Fourth Proportional to 18,235.90, 27,368.87 and 14,101.09

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Solution

The fourth proportional to 18,235.90, 27,368.87 and 14,101.09 is: 21,163.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,235.90 : 27,368.87 = 14,101.09 : x
  2. Step 2: Convert to fraction form
    18,235.90/27,368.87 = 14,101.09/x
  3. Step 3: Cross multiply
    18,235.90x = 27,368.87 × 14,101.09
  4. Step 4: Simplify right side
    18,235.90x = 385,930,899.07
  5. Step 5: Solve for x
    x = 385,930,899.07/18,235.90
  6. Step 6: Final answer
    x = 21,163.25

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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.