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Finding the Fourth Proportional to 16,590, 24,885 and 4,902.31

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Solution

The fourth proportional to 16,590, 24,885 and 4,902.31 is: 7,353.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,590 : 24,885 = 4,902.31 : x
  2. Step 2: Convert to fraction form
    16,590/24,885 = 4,902.31/x
  3. Step 3: Cross multiply
    16,590x = 24,885 × 4,902.31
  4. Step 4: Simplify right side
    16,590x = 121,993,984.35
  5. Step 5: Solve for x
    x = 121,993,984.35/16,590
  6. Step 6: Final answer
    x = 7,353.47

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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.