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Finding the Fourth Proportional to 58,595.60, 80,861.90 and 31,738.64

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Solution

The fourth proportional to 58,595.60, 80,861.90 and 31,738.64 is: 43,799.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,595.60 : 80,861.90 = 31,738.64 : x
  2. Step 2: Convert to fraction form
    58,595.60/80,861.90 = 31,738.64/x
  3. Step 3: Cross multiply
    58,595.60x = 80,861.90 × 31,738.64
  4. Step 4: Simplify right side
    58,595.60x = 2,566,446,170.81
  5. Step 5: Solve for x
    x = 2,566,446,170.81/58,595.60
  6. Step 6: Final answer
    x = 43,799.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.