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Finding the Fourth Proportional to 19,795.48, 29,692.86 and 7,951.96

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Solution

The fourth proportional to 19,795.48, 29,692.86 and 7,951.96 is: 11,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,795.48 : 29,692.86 = 7,951.96 : x
  2. Step 2: Convert to fraction form
    19,795.48/29,692.86 = 7,951.96/x
  3. Step 3: Cross multiply
    19,795.48x = 29,692.86 × 7,951.96
  4. Step 4: Simplify right side
    19,795.48x = 236,116,435.01
  5. Step 5: Solve for x
    x = 236,116,435.01/19,795.48
  6. Step 6: Final answer
    x = 11,927.80

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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.