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Finding the Fourth Proportional to 21,396.66, 32,087.11 and 7,352.70

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Solution

The fourth proportional to 21,396.66, 32,087.11 and 7,352.70 is: 11,026.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,396.66 : 32,087.11 = 7,352.70 : x
  2. Step 2: Convert to fraction form
    21,396.66/32,087.11 = 7,352.70/x
  3. Step 3: Cross multiply
    21,396.66x = 32,087.11 × 7,352.70
  4. Step 4: Simplify right side
    21,396.66x = 235,926,796.35
  5. Step 5: Solve for x
    x = 235,926,796.35/21,396.66
  6. Step 6: Final answer
    x = 11,026.34

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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.