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Finding the Fourth Proportional to 21,927.72, 32,883.41 and 7,883.92

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Solution

The fourth proportional to 21,927.72, 32,883.41 and 7,883.92 is: 11,822.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,927.72 : 32,883.41 = 7,883.92 : x
  2. Step 2: Convert to fraction form
    21,927.72/32,883.41 = 7,883.92/x
  3. Step 3: Cross multiply
    21,927.72x = 32,883.41 × 7,883.92
  4. Step 4: Simplify right side
    21,927.72x = 259,250,173.77
  5. Step 5: Solve for x
    x = 259,250,173.77/21,927.72
  6. Step 6: Final answer
    x = 11,822.94

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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.