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Finding the Fourth Proportional to 63,311.74, 94,920.44 and 21,166.88

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Solution

The fourth proportional to 63,311.74, 94,920.44 and 21,166.88 is: 31,734.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,311.74 : 94,920.44 = 21,166.88 : x
  2. Step 2: Convert to fraction form
    63,311.74/94,920.44 = 21,166.88/x
  3. Step 3: Cross multiply
    63,311.74x = 94,920.44 × 21,166.88
  4. Step 4: Simplify right side
    63,311.74x = 2,009,169,563.03
  5. Step 5: Solve for x
    x = 2,009,169,563.03/63,311.74
  6. Step 6: Final answer
    x = 31,734.55

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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.