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Finding the Fourth Proportional to 61,934.63, 85,470.14 and 36,783.59

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Solution

The fourth proportional to 61,934.63, 85,470.14 and 36,783.59 is: 50,761.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,934.63 : 85,470.14 = 36,783.59 : x
  2. Step 2: Convert to fraction form
    61,934.63/85,470.14 = 36,783.59/x
  3. Step 3: Cross multiply
    61,934.63x = 85,470.14 × 36,783.59
  4. Step 4: Simplify right side
    61,934.63x = 3,143,898,403.08
  5. Step 5: Solve for x
    x = 3,143,898,403.08/61,934.63
  6. Step 6: Final answer
    x = 50,761.56

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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.