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Finding the Fourth Proportional to 61,635.64, 85,057.20 and 34,783.84

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Solution

The fourth proportional to 61,635.64, 85,057.20 and 34,783.84 is: 48,001.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,635.64 : 85,057.20 = 34,783.84 : x
  2. Step 2: Convert to fraction form
    61,635.64/85,057.20 = 34,783.84/x
  3. Step 3: Cross multiply
    61,635.64x = 85,057.20 × 34,783.84
  4. Step 4: Simplify right side
    61,635.64x = 2,958,616,035.65
  5. Step 5: Solve for x
    x = 2,958,616,035.65/61,635.64
  6. Step 6: Final answer
    x = 48,001.71

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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.