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Finding the Fourth Proportional to 61,513.76, 84,879.96 and 34,650.92

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Solution

The fourth proportional to 61,513.76, 84,879.96 and 34,650.92 is: 47,813.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,513.76 : 84,879.96 = 34,650.92 : x
  2. Step 2: Convert to fraction form
    61,513.76/84,879.96 = 34,650.92/x
  3. Step 3: Cross multiply
    61,513.76x = 84,879.96 × 34,650.92
  4. Step 4: Simplify right side
    61,513.76x = 2,941,168,703.56
  5. Step 5: Solve for x
    x = 2,941,168,703.56/61,513.76
  6. Step 6: Final answer
    x = 47,813.18

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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.