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Finding the Fourth Proportional to 63,338.90, 94,994.50 and 21,224.96

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Solution

The fourth proportional to 63,338.90, 94,994.50 and 21,224.96 is: 31,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,338.90 : 94,994.50 = 21,224.96 : x
  2. Step 2: Convert to fraction form
    63,338.90/94,994.50 = 21,224.96/x
  3. Step 3: Cross multiply
    63,338.90x = 94,994.50 × 21,224.96
  4. Step 4: Simplify right side
    63,338.90x = 2,016,254,462.72
  5. Step 5: Solve for x
    x = 2,016,254,462.72/63,338.90
  6. Step 6: Final answer
    x = 31,832.80

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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.