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Finding the Fourth Proportional to 18,885.26, 28,322.09 and 6,232.68

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Solution

The fourth proportional to 18,885.26, 28,322.09 and 6,232.68 is: 9,347.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,885.26 : 28,322.09 = 6,232.68 : x
  2. Step 2: Convert to fraction form
    18,885.26/28,322.09 = 6,232.68/x
  3. Step 3: Cross multiply
    18,885.26x = 28,322.09 × 6,232.68
  4. Step 4: Simplify right side
    18,885.26x = 176,522,492.74
  5. Step 5: Solve for x
    x = 176,522,492.74/18,885.26
  6. Step 6: Final answer
    x = 9,347.11

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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.