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Finding the Fourth Proportional to 61,984.89, 85,539.65 and 33,690.51

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Solution

The fourth proportional to 61,984.89, 85,539.65 and 33,690.51 is: 46,493.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,984.89 : 85,539.65 = 33,690.51 : x
  2. Step 2: Convert to fraction form
    61,984.89/85,539.65 = 33,690.51/x
  3. Step 3: Cross multiply
    61,984.89x = 85,539.65 × 33,690.51
  4. Step 4: Simplify right side
    61,984.89x = 2,881,874,265.27
  5. Step 5: Solve for x
    x = 2,881,874,265.27/61,984.89
  6. Step 6: Final answer
    x = 46,493.17

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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.