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Finding the Fourth Proportional to 63,087.51, 87,060.84 and 34,407.21

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Solution

The fourth proportional to 63,087.51, 87,060.84 and 34,407.21 is: 47,481.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,087.51 : 87,060.84 = 34,407.21 : x
  2. Step 2: Convert to fraction form
    63,087.51/87,060.84 = 34,407.21/x
  3. Step 3: Cross multiply
    63,087.51x = 87,060.84 × 34,407.21
  4. Step 4: Simplify right side
    63,087.51x = 2,995,520,604.66
  5. Step 5: Solve for x
    x = 2,995,520,604.66/63,087.51
  6. Step 6: Final answer
    x = 47,481.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.