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Finding the Fourth Proportional to 70,651.44, 105,965.82 and 18,058.14

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Solution

The fourth proportional to 70,651.44, 105,965.82 and 18,058.14 is: 27,084.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,651.44 : 105,965.82 = 18,058.14 : x
  2. Step 2: Convert to fraction form
    70,651.44/105,965.82 = 18,058.14/x
  3. Step 3: Cross multiply
    70,651.44x = 105,965.82 × 18,058.14
  4. Step 4: Simplify right side
    70,651.44x = 1,913,545,612.77
  5. Step 5: Solve for x
    x = 1,913,545,612.77/70,651.44
  6. Step 6: Final answer
    x = 27,084.31

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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.