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Finding the Fourth Proportional to 52,647.80, 79,002.90 and 19,391.24

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Solution

The fourth proportional to 52,647.80, 79,002.90 and 19,391.24 is: 29,098.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,647.80 : 79,002.90 = 19,391.24 : x
  2. Step 2: Convert to fraction form
    52,647.80/79,002.90 = 19,391.24/x
  3. Step 3: Cross multiply
    52,647.80x = 79,002.90 × 19,391.24
  4. Step 4: Simplify right side
    52,647.80x = 1,531,964,194.60
  5. Step 5: Solve for x
    x = 1,531,964,194.60/52,647.80
  6. Step 6: Final answer
    x = 29,098.35

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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.