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Finding the Fourth Proportional to 63,447.84, 95,173.28 and 21,329.28

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Solution

The fourth proportional to 63,447.84, 95,173.28 and 21,329.28 is: 31,994.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,447.84 : 95,173.28 = 21,329.28 : x
  2. Step 2: Convert to fraction form
    63,447.84/95,173.28 = 21,329.28/x
  3. Step 3: Cross multiply
    63,447.84x = 95,173.28 × 21,329.28
  4. Step 4: Simplify right side
    63,447.84x = 2,029,977,537.64
  5. Step 5: Solve for x
    x = 2,029,977,537.64/63,447.84
  6. Step 6: Final answer
    x = 31,994.43

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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.