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Finding the Fourth Proportional to 11,271.36, 16,902.18 and 4,341

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Solution

The fourth proportional to 11,271.36, 16,902.18 and 4,341 is: 6,509.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,271.36 : 16,902.18 = 4,341 : x
  2. Step 2: Convert to fraction form
    11,271.36/16,902.18 = 4,341/x
  3. Step 3: Cross multiply
    11,271.36x = 16,902.18 × 4,341
  4. Step 4: Simplify right side
    11,271.36x = 73,372,363.38
  5. Step 5: Solve for x
    x = 73,372,363.38/11,271.36
  6. Step 6: Final answer
    x = 6,509.63

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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.