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Finding the Fourth Proportional to 7,374.13, 11,061.19 and 1,902.13

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Solution

The fourth proportional to 7,374.13, 11,061.19 and 1,902.13 is: 2,853.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374.13 : 11,061.19 = 1,902.13 : x
  2. Step 2: Convert to fraction form
    7,374.13/11,061.19 = 1,902.13/x
  3. Step 3: Cross multiply
    7,374.13x = 11,061.19 × 1,902.13
  4. Step 4: Simplify right side
    7,374.13x = 21,039,821.33
  5. Step 5: Solve for x
    x = 21,039,821.33/7,374.13
  6. Step 6: Final answer
    x = 2,853.19

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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.