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Finding the Fourth Proportional to 34,898.38, 48,159.78 and 19,786.21

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Solution

The fourth proportional to 34,898.38, 48,159.78 and 19,786.21 is: 27,304.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,898.38 : 48,159.78 = 19,786.21 : x
  2. Step 2: Convert to fraction form
    34,898.38/48,159.78 = 19,786.21/x
  3. Step 3: Cross multiply
    34,898.38x = 48,159.78 × 19,786.21
  4. Step 4: Simplify right side
    34,898.38x = 952,899,520.63
  5. Step 5: Solve for x
    x = 952,899,520.63/34,898.38
  6. Step 6: Final answer
    x = 27,304.98

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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.