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Finding the Fourth Proportional to 61,783.97, 85,259.59 and 33,489.05

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Solution

The fourth proportional to 61,783.97, 85,259.59 and 33,489.05 is: 46,213.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,783.97 : 85,259.59 = 33,489.05 : x
  2. Step 2: Convert to fraction form
    61,783.97/85,259.59 = 33,489.05/x
  3. Step 3: Cross multiply
    61,783.97x = 85,259.59 × 33,489.05
  4. Step 4: Simplify right side
    61,783.97x = 2,855,262,162.47
  5. Step 5: Solve for x
    x = 2,855,262,162.47/61,783.97
  6. Step 6: Final answer
    x = 46,213.64

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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.