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Finding the Fourth Proportional to 61,487.96, 84,854.51 and 36,009.41

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Solution

The fourth proportional to 61,487.96, 84,854.51 and 36,009.41 is: 49,693.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,487.96 : 84,854.51 = 36,009.41 : x
  2. Step 2: Convert to fraction form
    61,487.96/84,854.51 = 36,009.41/x
  3. Step 3: Cross multiply
    61,487.96x = 84,854.51 × 36,009.41
  4. Step 4: Simplify right side
    61,487.96x = 3,055,560,236.62
  5. Step 5: Solve for x
    x = 3,055,560,236.62/61,487.96
  6. Step 6: Final answer
    x = 49,693.64

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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.