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Finding the Fourth Proportional to 21,731.22, 32,601.92 and 6,737.55

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Solution

The fourth proportional to 21,731.22, 32,601.92 and 6,737.55 is: 10,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731.22 : 32,601.92 = 6,737.55 : x
  2. Step 2: Convert to fraction form
    21,731.22/32,601.92 = 6,737.55/x
  3. Step 3: Cross multiply
    21,731.22x = 32,601.92 × 6,737.55
  4. Step 4: Simplify right side
    21,731.22x = 219,657,032.41
  5. Step 5: Solve for x
    x = 219,657,032.41/21,731.22
  6. Step 6: Final answer
    x = 10,107.90

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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.