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Finding the Fourth Proportional to 63,802.75, 95,711.94 and 21,689.77

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Solution

The fourth proportional to 63,802.75, 95,711.94 and 21,689.77 is: 32,537.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,802.75 : 95,711.94 = 21,689.77 : x
  2. Step 2: Convert to fraction form
    63,802.75/95,711.94 = 21,689.77/x
  3. Step 3: Cross multiply
    63,802.75x = 95,711.94 × 21,689.77
  4. Step 4: Simplify right side
    63,802.75x = 2,075,969,964.85
  5. Step 5: Solve for x
    x = 2,075,969,964.85/63,802.75
  6. Step 6: Final answer
    x = 32,537.31

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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.