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Finding the Fourth Proportional to 21,753.28, 32,632.08 and 6,958.48

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Solution

The fourth proportional to 21,753.28, 32,632.08 and 6,958.48 is: 10,438.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,753.28 : 32,632.08 = 6,958.48 : x
  2. Step 2: Convert to fraction form
    21,753.28/32,632.08 = 6,958.48/x
  3. Step 3: Cross multiply
    21,753.28x = 32,632.08 × 6,958.48
  4. Step 4: Simplify right side
    21,753.28x = 227,069,676.04
  5. Step 5: Solve for x
    x = 227,069,676.04/21,753.28
  6. Step 6: Final answer
    x = 10,438.41

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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.