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Finding the Fourth Proportional to 19,609.69, 27,060.90 and 10,995.30

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Solution

The fourth proportional to 19,609.69, 27,060.90 and 10,995.30 is: 15,173.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,609.69 : 27,060.90 = 10,995.30 : x
  2. Step 2: Convert to fraction form
    19,609.69/27,060.90 = 10,995.30/x
  3. Step 3: Cross multiply
    19,609.69x = 27,060.90 × 10,995.30
  4. Step 4: Simplify right side
    19,609.69x = 297,542,612.29
  5. Step 5: Solve for x
    x = 297,542,612.29/19,609.69
  6. Step 6: Final answer
    x = 15,173.25

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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.