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Finding the Fourth Proportional to 61,732.36, 85,161.90 and 36,239.32

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Solution

The fourth proportional to 61,732.36, 85,161.90 and 36,239.32 is: 49,993.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,732.36 : 85,161.90 = 36,239.32 : x
  2. Step 2: Convert to fraction form
    61,732.36/85,161.90 = 36,239.32/x
  3. Step 3: Cross multiply
    61,732.36x = 85,161.90 × 36,239.32
  4. Step 4: Simplify right side
    61,732.36x = 3,086,209,345.91
  5. Step 5: Solve for x
    x = 3,086,209,345.91/61,732.36
  6. Step 6: Final answer
    x = 49,993.38

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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.