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Finding the Fourth Proportional to 21,679.99, 32,519.99 and 6,097.61

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Solution

The fourth proportional to 21,679.99, 32,519.99 and 6,097.61 is: 9,146.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,679.99 : 32,519.99 = 6,097.61 : x
  2. Step 2: Convert to fraction form
    21,679.99/32,519.99 = 6,097.61/x
  3. Step 3: Cross multiply
    21,679.99x = 32,519.99 × 6,097.61
  4. Step 4: Simplify right side
    21,679.99x = 198,294,216.22
  5. Step 5: Solve for x
    x = 198,294,216.22/21,679.99
  6. Step 6: Final answer
    x = 9,146.42

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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.