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Finding the Fourth Proportional to 16,455.56, 24,685.90 and 5,509

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Solution

The fourth proportional to 16,455.56, 24,685.90 and 5,509 is: 8,264.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,455.56 : 24,685.90 = 5,509 : x
  2. Step 2: Convert to fraction form
    16,455.56/24,685.90 = 5,509/x
  3. Step 3: Cross multiply
    16,455.56x = 24,685.90 × 5,509
  4. Step 4: Simplify right side
    16,455.56x = 135,994,623.10
  5. Step 5: Solve for x
    x = 135,994,623.10/16,455.56
  6. Step 6: Final answer
    x = 8,264.36

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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.