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Finding the Fourth Proportional to 21,731.98, 32,600.34 and 6,937.42

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Solution

The fourth proportional to 21,731.98, 32,600.34 and 6,937.42 is: 10,406.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731.98 : 32,600.34 = 6,937.42 : x
  2. Step 2: Convert to fraction form
    21,731.98/32,600.34 = 6,937.42/x
  3. Step 3: Cross multiply
    21,731.98x = 32,600.34 × 6,937.42
  4. Step 4: Simplify right side
    21,731.98x = 226,162,250.72
  5. Step 5: Solve for x
    x = 226,162,250.72/21,731.98
  6. Step 6: Final answer
    x = 10,406.89

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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.