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Finding the Fourth Proportional to 35,281.90, 52,919.60 and 11,908.54

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Solution

The fourth proportional to 35,281.90, 52,919.60 and 11,908.54 is: 17,861.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,281.90 : 52,919.60 = 11,908.54 : x
  2. Step 2: Convert to fraction form
    35,281.90/52,919.60 = 11,908.54/x
  3. Step 3: Cross multiply
    35,281.90x = 52,919.60 × 11,908.54
  4. Step 4: Simplify right side
    35,281.90x = 630,195,173.38
  5. Step 5: Solve for x
    x = 630,195,173.38/35,281.90
  6. Step 6: Final answer
    x = 17,861.71

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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.