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Finding the Fourth Proportional to 30,476.73, 42,061.37 and 17,051.38

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Solution

The fourth proportional to 30,476.73, 42,061.37 and 17,051.38 is: 23,532.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,476.73 : 42,061.37 = 17,051.38 : x
  2. Step 2: Convert to fraction form
    30,476.73/42,061.37 = 17,051.38/x
  3. Step 3: Cross multiply
    30,476.73x = 42,061.37 × 17,051.38
  4. Step 4: Simplify right side
    30,476.73x = 717,204,466.42
  5. Step 5: Solve for x
    x = 717,204,466.42/30,476.73
  6. Step 6: Final answer
    x = 23,532.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.