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Finding the Fourth Proportional to 20,250.76, 30,325.92 and 14,017

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Solution

The fourth proportional to 20,250.76, 30,325.92 and 14,017 is: 20,990.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.76 : 30,325.92 = 14,017 : x
  2. Step 2: Convert to fraction form
    20,250.76/30,325.92 = 14,017/x
  3. Step 3: Cross multiply
    20,250.76x = 30,325.92 × 14,017
  4. Step 4: Simplify right side
    20,250.76x = 425,078,420.64
  5. Step 5: Solve for x
    x = 425,078,420.64/20,250.76
  6. Step 6: Final answer
    x = 20,990.74

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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.