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Finding the Fourth Proportional to 61,731.83, 85,185.51 and 36,239.24

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Solution

The fourth proportional to 61,731.83, 85,185.51 and 36,239.24 is: 50,007.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,731.83 : 85,185.51 = 36,239.24 : x
  2. Step 2: Convert to fraction form
    61,731.83/85,185.51 = 36,239.24/x
  3. Step 3: Cross multiply
    61,731.83x = 85,185.51 × 36,239.24
  4. Step 4: Simplify right side
    61,731.83x = 3,087,058,141.41
  5. Step 5: Solve for x
    x = 3,087,058,141.41/61,731.83
  6. Step 6: Final answer
    x = 50,007.56

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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.