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Finding the Fourth Proportional to 43,376.42, 65,071.11 and 13,795.22

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Solution

The fourth proportional to 43,376.42, 65,071.11 and 13,795.22 is: 20,694.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,376.42 : 65,071.11 = 13,795.22 : x
  2. Step 2: Convert to fraction form
    43,376.42/65,071.11 = 13,795.22/x
  3. Step 3: Cross multiply
    43,376.42x = 65,071.11 × 13,795.22
  4. Step 4: Simplify right side
    43,376.42x = 897,670,278.09
  5. Step 5: Solve for x
    x = 897,670,278.09/43,376.42
  6. Step 6: Final answer
    x = 20,694.89

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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.