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Finding the Fourth Proportional to 16,387.05, 24,577.88 and 7,028.58

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Solution

The fourth proportional to 16,387.05, 24,577.88 and 7,028.58 is: 10,541.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,387.05 : 24,577.88 = 7,028.58 : x
  2. Step 2: Convert to fraction form
    16,387.05/24,577.88 = 7,028.58/x
  3. Step 3: Cross multiply
    16,387.05x = 24,577.88 × 7,028.58
  4. Step 4: Simplify right side
    16,387.05x = 172,747,560.67
  5. Step 5: Solve for x
    x = 172,747,560.67/16,387.05
  6. Step 6: Final answer
    x = 10,541.71

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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.