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Finding the Fourth Proportional to 52,786.65, 79,187.70 and 15,341.85

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Solution

The fourth proportional to 52,786.65, 79,187.70 and 15,341.85 is: 23,015.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,786.65 : 79,187.70 = 15,341.85 : x
  2. Step 2: Convert to fraction form
    52,786.65/79,187.70 = 15,341.85/x
  3. Step 3: Cross multiply
    52,786.65x = 79,187.70 × 15,341.85
  4. Step 4: Simplify right side
    52,786.65x = 1,214,885,872.78
  5. Step 5: Solve for x
    x = 1,214,885,872.78/52,786.65
  6. Step 6: Final answer
    x = 23,015.02

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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.