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Finding the Fourth Proportional to 18,685.80, 28,034.19 and 6,035.29

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Solution

The fourth proportional to 18,685.80, 28,034.19 and 6,035.29 is: 9,054.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.80 : 28,034.19 = 6,035.29 : x
  2. Step 2: Convert to fraction form
    18,685.80/28,034.19 = 6,035.29/x
  3. Step 3: Cross multiply
    18,685.80x = 28,034.19 × 6,035.29
  4. Step 4: Simplify right side
    18,685.80x = 169,194,396.48
  5. Step 5: Solve for x
    x = 169,194,396.48/18,685.80
  6. Step 6: Final answer
    x = 9,054.70

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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.