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Finding the Fourth Proportional to 5,607.02, 8,410.80 and 2,144

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Solution

The fourth proportional to 5,607.02, 8,410.80 and 2,144 is: 3,216.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.02 : 8,410.80 = 2,144 : x
  2. Step 2: Convert to fraction form
    5,607.02/8,410.80 = 2,144/x
  3. Step 3: Cross multiply
    5,607.02x = 8,410.80 × 2,144
  4. Step 4: Simplify right side
    5,607.02x = 18,032,755.20
  5. Step 5: Solve for x
    x = 18,032,755.20/5,607.02
  6. Step 6: Final answer
    x = 3,216.10

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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.