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Finding the Fourth Proportional to 73,067.70, 100,823.31 and 40,798.38

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Solution

The fourth proportional to 73,067.70, 100,823.31 and 40,798.38 is: 56,296.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,067.70 : 100,823.31 = 40,798.38 : x
  2. Step 2: Convert to fraction form
    73,067.70/100,823.31 = 40,798.38/x
  3. Step 3: Cross multiply
    73,067.70x = 100,823.31 × 40,798.38
  4. Step 4: Simplify right side
    73,067.70x = 4,113,427,714.24
  5. Step 5: Solve for x
    x = 4,113,427,714.24/73,067.70
  6. Step 6: Final answer
    x = 56,296.12

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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.