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Finding the Fourth Proportional to 16,763.76, 25,146 and 5,076.96

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Solution

The fourth proportional to 16,763.76, 25,146 and 5,076.96 is: 7,615.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,763.76 : 25,146 = 5,076.96 : x
  2. Step 2: Convert to fraction form
    16,763.76/25,146 = 5,076.96/x
  3. Step 3: Cross multiply
    16,763.76x = 25,146 × 5,076.96
  4. Step 4: Simplify right side
    16,763.76x = 127,665,236.16
  5. Step 5: Solve for x
    x = 127,665,236.16/16,763.76
  6. Step 6: Final answer
    x = 7,615.55

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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.