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Finding the Fourth Proportional to 52,941.88, 79,422.54 and 19,684.90

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Solution

The fourth proportional to 52,941.88, 79,422.54 and 19,684.90 is: 29,530.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,941.88 : 79,422.54 = 19,684.90 : x
  2. Step 2: Convert to fraction form
    52,941.88/79,422.54 = 19,684.90/x
  3. Step 3: Cross multiply
    52,941.88x = 79,422.54 × 19,684.90
  4. Step 4: Simplify right side
    52,941.88x = 1,563,424,757.65
  5. Step 5: Solve for x
    x = 1,563,424,757.65/52,941.88
  6. Step 6: Final answer
    x = 29,530.96

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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.