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Finding the Fourth Proportional to 63,071.85, 94,624.79 and 20,958.74

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Solution

The fourth proportional to 63,071.85, 94,624.79 and 20,958.74 is: 31,443.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,071.85 : 94,624.79 = 20,958.74 : x
  2. Step 2: Convert to fraction form
    63,071.85/94,624.79 = 20,958.74/x
  3. Step 3: Cross multiply
    63,071.85x = 94,624.79 × 20,958.74
  4. Step 4: Simplify right side
    63,071.85x = 1,983,216,371.16
  5. Step 5: Solve for x
    x = 1,983,216,371.16/63,071.85
  6. Step 6: Final answer
    x = 31,443.76

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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.