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Finding the Fourth Proportional to 34,945.41, 48,221.62 and 19,838.71

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Solution

The fourth proportional to 34,945.41, 48,221.62 and 19,838.71 is: 27,375.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,945.41 : 48,221.62 = 19,838.71 : x
  2. Step 2: Convert to fraction form
    34,945.41/48,221.62 = 19,838.71/x
  3. Step 3: Cross multiply
    34,945.41x = 48,221.62 × 19,838.71
  4. Step 4: Simplify right side
    34,945.41x = 956,654,734.91
  5. Step 5: Solve for x
    x = 956,654,734.91/34,945.41
  6. Step 6: Final answer
    x = 27,375.69

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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.