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Finding the Fourth Proportional to 34,891.54, 48,149.86 and 18,975.65

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Solution

The fourth proportional to 34,891.54, 48,149.86 and 18,975.65 is: 26,186.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,891.54 : 48,149.86 = 18,975.65 : x
  2. Step 2: Convert to fraction form
    34,891.54/48,149.86 = 18,975.65/x
  3. Step 3: Cross multiply
    34,891.54x = 48,149.86 × 18,975.65
  4. Step 4: Simplify right side
    34,891.54x = 913,674,890.91
  5. Step 5: Solve for x
    x = 913,674,890.91/34,891.54
  6. Step 6: Final answer
    x = 26,186.14

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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.