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Finding the Fourth Proportional to 61,785.22, 85,212.84 and 37,895.08

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Solution

The fourth proportional to 61,785.22, 85,212.84 and 37,895.08 is: 52,264.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,785.22 : 85,212.84 = 37,895.08 : x
  2. Step 2: Convert to fraction form
    61,785.22/85,212.84 = 37,895.08/x
  3. Step 3: Cross multiply
    61,785.22x = 85,212.84 × 37,895.08
  4. Step 4: Simplify right side
    61,785.22x = 3,229,147,388.83
  5. Step 5: Solve for x
    x = 3,229,147,388.83/61,785.22
  6. Step 6: Final answer
    x = 52,264.08

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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.