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Finding the Fourth Proportional to 63,401.70, 95,066.10 and 19,021.80

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Solution

The fourth proportional to 63,401.70, 95,066.10 and 19,021.80 is: 28,521.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,401.70 : 95,066.10 = 19,021.80 : x
  2. Step 2: Convert to fraction form
    63,401.70/95,066.10 = 19,021.80/x
  3. Step 3: Cross multiply
    63,401.70x = 95,066.10 × 19,021.80
  4. Step 4: Simplify right side
    63,401.70x = 1,808,328,340.98
  5. Step 5: Solve for x
    x = 1,808,328,340.98/63,401.70
  6. Step 6: Final answer
    x = 28,521.76

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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.