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Finding the Fourth Proportional to 29,387.62, 40,554.03 and 15,958.63

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Solution

The fourth proportional to 29,387.62, 40,554.03 and 15,958.63 is: 22,022.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,387.62 : 40,554.03 = 15,958.63 : x
  2. Step 2: Convert to fraction form
    29,387.62/40,554.03 = 15,958.63/x
  3. Step 3: Cross multiply
    29,387.62x = 40,554.03 × 15,958.63
  4. Step 4: Simplify right side
    29,387.62x = 647,186,759.78
  5. Step 5: Solve for x
    x = 647,186,759.78/29,387.62
  6. Step 6: Final answer
    x = 22,022.43

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1.5x scale

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.