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Finding the Fourth Proportional to 21,960.53, 32,917.17 and 9,486.42

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Solution

The fourth proportional to 21,960.53, 32,917.17 and 9,486.42 is: 14,219.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960.53 : 32,917.17 = 9,486.42 : x
  2. Step 2: Convert to fraction form
    21,960.53/32,917.17 = 9,486.42/x
  3. Step 3: Cross multiply
    21,960.53x = 32,917.17 × 9,486.42
  4. Step 4: Simplify right side
    21,960.53x = 312,266,099.83
  5. Step 5: Solve for x
    x = 312,266,099.83/21,960.53
  6. Step 6: Final answer
    x = 14,219.43

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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.