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Finding the Fourth Proportional to 52,999.70, 79,326.50 and 38,956.03

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Solution

The fourth proportional to 52,999.70, 79,326.50 and 38,956.03 is: 58,306.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,999.70 : 79,326.50 = 38,956.03 : x
  2. Step 2: Convert to fraction form
    52,999.70/79,326.50 = 38,956.03/x
  3. Step 3: Cross multiply
    52,999.70x = 79,326.50 × 38,956.03
  4. Step 4: Simplify right side
    52,999.70x = 3,090,245,120.70
  5. Step 5: Solve for x
    x = 3,090,245,120.70/52,999.70
  6. Step 6: Final answer
    x = 58,306.85

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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.