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Finding the Fourth Proportional to 45,722.63, 68,523.80 and 19,394.79

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Solution

The fourth proportional to 45,722.63, 68,523.80 and 19,394.79 is: 29,066.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,722.63 : 68,523.80 = 19,394.79 : x
  2. Step 2: Convert to fraction form
    45,722.63/68,523.80 = 19,394.79/x
  3. Step 3: Cross multiply
    45,722.63x = 68,523.80 × 19,394.79
  4. Step 4: Simplify right side
    45,722.63x = 1,329,004,614.03
  5. Step 5: Solve for x
    x = 1,329,004,614.03/45,722.63
  6. Step 6: Final answer
    x = 29,066.67

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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.