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Finding the Fourth Proportional to 17,137.66, 25,710 and 7,276.90

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Solution

The fourth proportional to 17,137.66, 25,710 and 7,276.90 is: 10,916.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,137.66 : 25,710 = 7,276.90 : x
  2. Step 2: Convert to fraction form
    17,137.66/25,710 = 7,276.90/x
  3. Step 3: Cross multiply
    17,137.66x = 25,710 × 7,276.90
  4. Step 4: Simplify right side
    17,137.66x = 187,089,099
  5. Step 5: Solve for x
    x = 187,089,099/17,137.66
  6. Step 6: Final answer
    x = 10,916.84

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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.