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Finding the Fourth Proportional to 23,241, 34,987.96 and 21,174.29

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Solution

The fourth proportional to 23,241, 34,987.96 and 21,174.29 is: 31,876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,241 : 34,987.96 = 21,174.29 : x
  2. Step 2: Convert to fraction form
    23,241/34,987.96 = 21,174.29/x
  3. Step 3: Cross multiply
    23,241x = 34,987.96 × 21,174.29
  4. Step 4: Simplify right side
    23,241x = 740,844,930.74
  5. Step 5: Solve for x
    x = 740,844,930.74/23,241
  6. Step 6: Final answer
    x = 31,876.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.