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Finding the Fourth Proportional to 21,396.56, 32,086.97 and 7,352.60

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Solution

The fourth proportional to 21,396.56, 32,086.97 and 7,352.60 is: 11,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,396.56 : 32,086.97 = 7,352.60 : x
  2. Step 2: Convert to fraction form
    21,396.56/32,086.97 = 7,352.60/x
  3. Step 3: Cross multiply
    21,396.56x = 32,086.97 × 7,352.60
  4. Step 4: Simplify right side
    21,396.56x = 235,922,707.84
  5. Step 5: Solve for x
    x = 235,922,707.84/21,396.56
  6. Step 6: Final answer
    x = 11,026.20

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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.