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Finding the Fourth Proportional to 52,806.69, 79,210.08 and 12,825.45

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Solution

The fourth proportional to 52,806.69, 79,210.08 and 12,825.45 is: 19,238.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,806.69 : 79,210.08 = 12,825.45 : x
  2. Step 2: Convert to fraction form
    52,806.69/79,210.08 = 12,825.45/x
  3. Step 3: Cross multiply
    52,806.69x = 79,210.08 × 12,825.45
  4. Step 4: Simplify right side
    52,806.69x = 1,015,904,920.54
  5. Step 5: Solve for x
    x = 1,015,904,920.54/52,806.69
  6. Step 6: Final answer
    x = 19,238.19

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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.