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Finding the Fourth Proportional to 86,694.48, 119,636.82 and 48,454.65

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Solution

The fourth proportional to 86,694.48, 119,636.82 and 48,454.65 is: 66,866.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,694.48 : 119,636.82 = 48,454.65 : x
  2. Step 2: Convert to fraction form
    86,694.48/119,636.82 = 48,454.65/x
  3. Step 3: Cross multiply
    86,694.48x = 119,636.82 × 48,454.65
  4. Step 4: Simplify right side
    86,694.48x = 5,796,960,240.21
  5. Step 5: Solve for x
    x = 5,796,960,240.21/86,694.48
  6. Step 6: Final answer
    x = 66,866.54

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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.