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Finding the Fourth Proportional to 52,699.70, 79,053.68 and 15,260.33

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Solution

The fourth proportional to 52,699.70, 79,053.68 and 15,260.33 is: 22,891.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,699.70 : 79,053.68 = 15,260.33 : x
  2. Step 2: Convert to fraction form
    52,699.70/79,053.68 = 15,260.33/x
  3. Step 3: Cross multiply
    52,699.70x = 79,053.68 × 15,260.33
  4. Step 4: Simplify right side
    52,699.70x = 1,206,385,480.30
  5. Step 5: Solve for x
    x = 1,206,385,480.30/52,699.70
  6. Step 6: Final answer
    x = 22,891.69

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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.