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Finding the Fourth Proportional to 51,460.69, 71,015.75 and 27,908.69

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Solution

The fourth proportional to 51,460.69, 71,015.75 and 27,908.69 is: 38,513.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,460.69 : 71,015.75 = 27,908.69 : x
  2. Step 2: Convert to fraction form
    51,460.69/71,015.75 = 27,908.69/x
  3. Step 3: Cross multiply
    51,460.69x = 71,015.75 × 27,908.69
  4. Step 4: Simplify right side
    51,460.69x = 1,981,956,339.44
  5. Step 5: Solve for x
    x = 1,981,956,339.44/51,460.69
  6. Step 6: Final answer
    x = 38,513.99

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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.