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Finding the Fourth Proportional to 43,861.86, 65,799.27 and 12,693.06

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Solution

The fourth proportional to 43,861.86, 65,799.27 and 12,693.06 is: 19,041.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,861.86 : 65,799.27 = 12,693.06 : x
  2. Step 2: Convert to fraction form
    43,861.86/65,799.27 = 12,693.06/x
  3. Step 3: Cross multiply
    43,861.86x = 65,799.27 × 12,693.06
  4. Step 4: Simplify right side
    43,861.86x = 835,194,082.07
  5. Step 5: Solve for x
    x = 835,194,082.07/43,861.86
  6. Step 6: Final answer
    x = 19,041.47

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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.