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Finding the Fourth Proportional to 52,902.80, 79,315.47 and 19,623.04

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Solution

The fourth proportional to 52,902.80, 79,315.47 and 19,623.04 is: 29,420.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,902.80 : 79,315.47 = 19,623.04 : x
  2. Step 2: Convert to fraction form
    52,902.80/79,315.47 = 19,623.04/x
  3. Step 3: Cross multiply
    52,902.80x = 79,315.47 × 19,623.04
  4. Step 4: Simplify right side
    52,902.80x = 1,556,410,640.43
  5. Step 5: Solve for x
    x = 1,556,410,640.43/52,902.80
  6. Step 6: Final answer
    x = 29,420.19

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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.