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Finding the Fourth Proportional to 21,832.28, 32,721.03 and 9,337.63

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Solution

The fourth proportional to 21,832.28, 32,721.03 and 9,337.63 is: 13,994.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,832.28 : 32,721.03 = 9,337.63 : x
  2. Step 2: Convert to fraction form
    21,832.28/32,721.03 = 9,337.63/x
  3. Step 3: Cross multiply
    21,832.28x = 32,721.03 × 9,337.63
  4. Step 4: Simplify right side
    21,832.28x = 305,536,871.36
  5. Step 5: Solve for x
    x = 305,536,871.36/21,832.28
  6. Step 6: Final answer
    x = 13,994.73

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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.