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Finding the Fourth Proportional to 21,593.76, 32,391.12 and 11,199.84

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Solution

The fourth proportional to 21,593.76, 32,391.12 and 11,199.84 is: 16,800.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,593.76 : 32,391.12 = 11,199.84 : x
  2. Step 2: Convert to fraction form
    21,593.76/32,391.12 = 11,199.84/x
  3. Step 3: Cross multiply
    21,593.76x = 32,391.12 × 11,199.84
  4. Step 4: Simplify right side
    21,593.76x = 362,775,361.42
  5. Step 5: Solve for x
    x = 362,775,361.42/21,593.76
  6. Step 6: Final answer
    x = 16,800.01

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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.