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Finding the Fourth Proportional to 21,503.25, 32,246.59 and 8,353.89

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Solution

The fourth proportional to 21,503.25, 32,246.59 and 8,353.89 is: 12,527.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,503.25 : 32,246.59 = 8,353.89 : x
  2. Step 2: Convert to fraction form
    21,503.25/32,246.59 = 8,353.89/x
  3. Step 3: Cross multiply
    21,503.25x = 32,246.59 × 8,353.89
  4. Step 4: Simplify right side
    21,503.25x = 269,384,465.74
  5. Step 5: Solve for x
    x = 269,384,465.74/21,503.25
  6. Step 6: Final answer
    x = 12,527.62

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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.