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Finding the Fourth Proportional to 61,646.84, 85,077.13 and 34,791.69

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Solution

The fourth proportional to 61,646.84, 85,077.13 and 34,791.69 is: 48,015.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,646.84 : 85,077.13 = 34,791.69 : x
  2. Step 2: Convert to fraction form
    61,646.84/85,077.13 = 34,791.69/x
  3. Step 3: Cross multiply
    61,646.84x = 85,077.13 × 34,791.69
  4. Step 4: Simplify right side
    61,646.84x = 2,959,977,133.05
  5. Step 5: Solve for x
    x = 2,959,977,133.05/61,646.84
  6. Step 6: Final answer
    x = 48,015.07

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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.