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Finding the Fourth Proportional to 19,891.29, 29,837 and 6,752.95

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Solution

The fourth proportional to 19,891.29, 29,837 and 6,752.95 is: 10,129.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,891.29 : 29,837 = 6,752.95 : x
  2. Step 2: Convert to fraction form
    19,891.29/29,837 = 6,752.95/x
  3. Step 3: Cross multiply
    19,891.29x = 29,837 × 6,752.95
  4. Step 4: Simplify right side
    19,891.29x = 201,487,769.15
  5. Step 5: Solve for x
    x = 201,487,769.15/19,891.29
  6. Step 6: Final answer
    x = 10,129.45

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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.