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Finding the Fourth Proportional to 61,550.74, 84,960.80 and 38,285.29

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Solution

The fourth proportional to 61,550.74, 84,960.80 and 38,285.29 is: 52,846.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,550.74 : 84,960.80 = 38,285.29 : x
  2. Step 2: Convert to fraction form
    61,550.74/84,960.80 = 38,285.29/x
  3. Step 3: Cross multiply
    61,550.74x = 84,960.80 × 38,285.29
  4. Step 4: Simplify right side
    61,550.74x = 3,252,748,866.63
  5. Step 5: Solve for x
    x = 3,252,748,866.63/61,550.74
  6. Step 6: Final answer
    x = 52,846.62

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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.