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Finding the Fourth Proportional to 18,692.58, 28,057.32 and 9,927.47

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Solution

The fourth proportional to 18,692.58, 28,057.32 and 9,927.47 is: 14,901.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692.58 : 28,057.32 = 9,927.47 : x
  2. Step 2: Convert to fraction form
    18,692.58/28,057.32 = 9,927.47/x
  3. Step 3: Cross multiply
    18,692.58x = 28,057.32 × 9,927.47
  4. Step 4: Simplify right side
    18,692.58x = 278,538,202.58
  5. Step 5: Solve for x
    x = 278,538,202.58/18,692.58
  6. Step 6: Final answer
    x = 14,901.00

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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.