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Finding the Fourth Proportional to 19,304.69, 28,938.54 and 6,148.54

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Solution

The fourth proportional to 19,304.69, 28,938.54 and 6,148.54 is: 9,216.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,304.69 : 28,938.54 = 6,148.54 : x
  2. Step 2: Convert to fraction form
    19,304.69/28,938.54 = 6,148.54/x
  3. Step 3: Cross multiply
    19,304.69x = 28,938.54 × 6,148.54
  4. Step 4: Simplify right side
    19,304.69x = 177,929,626.04
  5. Step 5: Solve for x
    x = 177,929,626.04/19,304.69
  6. Step 6: Final answer
    x = 9,216.91

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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.