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Finding the Fourth Proportional to 63,020.19, 86,973.84 and 36,168.69

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Solution

The fourth proportional to 63,020.19, 86,973.84 and 36,168.69 is: 49,916.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,020.19 : 86,973.84 = 36,168.69 : x
  2. Step 2: Convert to fraction form
    63,020.19/86,973.84 = 36,168.69/x
  3. Step 3: Cross multiply
    63,020.19x = 86,973.84 × 36,168.69
  4. Step 4: Simplify right side
    63,020.19x = 3,145,729,857.07
  5. Step 5: Solve for x
    x = 3,145,729,857.07/63,020.19
  6. Step 6: Final answer
    x = 49,916.22

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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.