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Finding the Fourth Proportional to 52,961.79, 79,445.12 and 23,379.78

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Solution

The fourth proportional to 52,961.79, 79,445.12 and 23,379.78 is: 35,070.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,961.79 : 79,445.12 = 23,379.78 : x
  2. Step 2: Convert to fraction form
    52,961.79/79,445.12 = 23,379.78/x
  3. Step 3: Cross multiply
    52,961.79x = 79,445.12 × 23,379.78
  4. Step 4: Simplify right side
    52,961.79x = 1,857,409,310.77
  5. Step 5: Solve for x
    x = 1,857,409,310.77/52,961.79
  6. Step 6: Final answer
    x = 35,070.74

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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.