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Finding the Fourth Proportional to 18,514.69, 27,772.13 and 4,663.69

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Solution

The fourth proportional to 18,514.69, 27,772.13 and 4,663.69 is: 6,995.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,514.69 : 27,772.13 = 4,663.69 : x
  2. Step 2: Convert to fraction form
    18,514.69/27,772.13 = 4,663.69/x
  3. Step 3: Cross multiply
    18,514.69x = 27,772.13 × 4,663.69
  4. Step 4: Simplify right side
    18,514.69x = 129,520,547.19
  5. Step 5: Solve for x
    x = 129,520,547.19/18,514.69
  6. Step 6: Final answer
    x = 6,995.56

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1.5x scale

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.