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Finding the Fourth Proportional to 16,652.63, 24,978.36 and 4,172.76

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Solution

The fourth proportional to 16,652.63, 24,978.36 and 4,172.76 is: 6,258.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,652.63 : 24,978.36 = 4,172.76 : x
  2. Step 2: Convert to fraction form
    16,652.63/24,978.36 = 4,172.76/x
  3. Step 3: Cross multiply
    16,652.63x = 24,978.36 × 4,172.76
  4. Step 4: Simplify right side
    16,652.63x = 104,228,701.47
  5. Step 5: Solve for x
    x = 104,228,701.47/16,652.63
  6. Step 6: Final answer
    x = 6,258.99

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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.