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Finding the Fourth Proportional to 21,885.76, 32,832.96 and 8,034.88

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Solution

The fourth proportional to 21,885.76, 32,832.96 and 8,034.88 is: 12,053.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,885.76 : 32,832.96 = 8,034.88 : x
  2. Step 2: Convert to fraction form
    21,885.76/32,832.96 = 8,034.88/x
  3. Step 3: Cross multiply
    21,885.76x = 32,832.96 × 8,034.88
  4. Step 4: Simplify right side
    21,885.76x = 263,808,893.64
  5. Step 5: Solve for x
    x = 263,808,893.64/21,885.76
  6. Step 6: Final answer
    x = 12,053.91

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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.