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Finding the Fourth Proportional to 61,934.46, 85,476.78 and 36,783.96

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Solution

The fourth proportional to 61,934.46, 85,476.78 and 36,783.96 is: 50,766.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,934.46 : 85,476.78 = 36,783.96 : x
  2. Step 2: Convert to fraction form
    61,934.46/85,476.78 = 36,783.96/x
  3. Step 3: Cross multiply
    61,934.46x = 85,476.78 × 36,783.96
  4. Step 4: Simplify right side
    61,934.46x = 3,144,174,456.45
  5. Step 5: Solve for x
    x = 3,144,174,456.45/61,934.46
  6. Step 6: Final answer
    x = 50,766.16

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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.