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Finding the Fourth Proportional to 16,652.75, 24,978.55 and 4,172.88

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Solution

The fourth proportional to 16,652.75, 24,978.55 and 4,172.88 is: 6,259.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,652.75 : 24,978.55 = 4,172.88 : x
  2. Step 2: Convert to fraction form
    16,652.75/24,978.55 = 4,172.88/x
  3. Step 3: Cross multiply
    16,652.75x = 24,978.55 × 4,172.88
  4. Step 4: Simplify right side
    16,652.75x = 104,232,491.72
  5. Step 5: Solve for x
    x = 104,232,491.72/16,652.75
  6. Step 6: Final answer
    x = 6,259.18

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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.