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Finding the Fourth Proportional to 21,392.82, 32,087.04 and 7,353.12

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Solution

The fourth proportional to 21,392.82, 32,087.04 and 7,353.12 is: 11,028.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,392.82 : 32,087.04 = 7,353.12 : x
  2. Step 2: Convert to fraction form
    21,392.82/32,087.04 = 7,353.12/x
  3. Step 3: Cross multiply
    21,392.82x = 32,087.04 × 7,353.12
  4. Step 4: Simplify right side
    21,392.82x = 235,939,855.56
  5. Step 5: Solve for x
    x = 235,939,855.56/21,392.82
  6. Step 6: Final answer
    x = 11,028.93

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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.