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Finding the Fourth Proportional to 62,892.40, 94,318.58 and 20,764.64

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Solution

The fourth proportional to 62,892.40, 94,318.58 and 20,764.64 is: 31,140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,892.40 : 94,318.58 = 20,764.64 : x
  2. Step 2: Convert to fraction form
    62,892.40/94,318.58 = 20,764.64/x
  3. Step 3: Cross multiply
    62,892.40x = 94,318.58 × 20,764.64
  4. Step 4: Simplify right side
    62,892.40x = 1,958,491,359.01
  5. Step 5: Solve for x
    x = 1,958,491,359.01/62,892.40
  6. Step 6: Final answer
    x = 31,140.35

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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.