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Finding the Fourth Proportional to 18,692.51, 27,953.51 and 13,952.03

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Solution

The fourth proportional to 18,692.51, 27,953.51 and 13,952.03 is: 20,864.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692.51 : 27,953.51 = 13,952.03 : x
  2. Step 2: Convert to fraction form
    18,692.51/27,953.51 = 13,952.03/x
  3. Step 3: Cross multiply
    18,692.51x = 27,953.51 × 13,952.03
  4. Step 4: Simplify right side
    18,692.51x = 390,008,000.60
  5. Step 5: Solve for x
    x = 390,008,000.60/18,692.51
  6. Step 6: Final answer
    x = 20,864.41

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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.