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Finding the Fourth Proportional to 19,223.73, 28,840.44 and 5,372.73

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Solution

The fourth proportional to 19,223.73, 28,840.44 and 5,372.73 is: 8,060.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,223.73 : 28,840.44 = 5,372.73 : x
  2. Step 2: Convert to fraction form
    19,223.73/28,840.44 = 5,372.73/x
  3. Step 3: Cross multiply
    19,223.73x = 28,840.44 × 5,372.73
  4. Step 4: Simplify right side
    19,223.73x = 154,951,897.20
  5. Step 5: Solve for x
    x = 154,951,897.20/19,223.73
  6. Step 6: Final answer
    x = 8,060.45

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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.