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Finding the Fourth Proportional to 13,951.98, 20,875.68 and 8,309.03

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Solution

The fourth proportional to 13,951.98, 20,875.68 and 8,309.03 is: 12,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.98 : 20,875.68 = 8,309.03 : x
  2. Step 2: Convert to fraction form
    13,951.98/20,875.68 = 8,309.03/x
  3. Step 3: Cross multiply
    13,951.98x = 20,875.68 × 8,309.03
  4. Step 4: Simplify right side
    13,951.98x = 173,456,547.01
  5. Step 5: Solve for x
    x = 173,456,547.01/13,951.98
  6. Step 6: Final answer
    x = 12,432.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.