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Finding the Fourth Proportional to 21,633.58, 32,447.64 and 6,843.99

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Solution

The fourth proportional to 21,633.58, 32,447.64 and 6,843.99 is: 10,265.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,633.58 : 32,447.64 = 6,843.99 : x
  2. Step 2: Convert to fraction form
    21,633.58/32,447.64 = 6,843.99/x
  3. Step 3: Cross multiply
    21,633.58x = 32,447.64 × 6,843.99
  4. Step 4: Simplify right side
    21,633.58x = 222,071,432.53
  5. Step 5: Solve for x
    x = 222,071,432.53/21,633.58
  6. Step 6: Final answer
    x = 10,265.13

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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.