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Finding the Fourth Proportional to 18,952.29, 28,429.79 and 5,802.95

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Solution

The fourth proportional to 18,952.29, 28,429.79 and 5,802.95 is: 8,704.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,952.29 : 28,429.79 = 5,802.95 : x
  2. Step 2: Convert to fraction form
    18,952.29/28,429.79 = 5,802.95/x
  3. Step 3: Cross multiply
    18,952.29x = 28,429.79 × 5,802.95
  4. Step 4: Simplify right side
    18,952.29x = 164,976,691.94
  5. Step 5: Solve for x
    x = 164,976,691.94/18,952.29
  6. Step 6: Final answer
    x = 8,704.84

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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.