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Finding the Fourth Proportional to 35,606.58, 49,131.78 and 19,691.70

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Solution

The fourth proportional to 35,606.58, 49,131.78 and 19,691.70 is: 27,171.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,606.58 : 49,131.78 = 19,691.70 : x
  2. Step 2: Convert to fraction form
    35,606.58/49,131.78 = 19,691.70/x
  3. Step 3: Cross multiply
    35,606.58x = 49,131.78 × 19,691.70
  4. Step 4: Simplify right side
    35,606.58x = 967,488,272.23
  5. Step 5: Solve for x
    x = 967,488,272.23/35,606.58
  6. Step 6: Final answer
    x = 27,171.61

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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.