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Finding the Fourth Proportional to 61,670.54, 85,105.29 and 34,813.28

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Solution

The fourth proportional to 61,670.54, 85,105.29 and 34,813.28 is: 48,042.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,670.54 : 85,105.29 = 34,813.28 : x
  2. Step 2: Convert to fraction form
    61,670.54/85,105.29 = 34,813.28/x
  3. Step 3: Cross multiply
    61,670.54x = 85,105.29 × 34,813.28
  4. Step 4: Simplify right side
    61,670.54x = 2,962,793,864.72
  5. Step 5: Solve for x
    x = 2,962,793,864.72/61,670.54
  6. Step 6: Final answer
    x = 48,042.29

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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.