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Finding the Fourth Proportional to 61,948.60, 85,489.17 and 33,654.31

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Solution

The fourth proportional to 61,948.60, 85,489.17 and 33,654.31 is: 46,443.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,948.60 : 85,489.17 = 33,654.31 : x
  2. Step 2: Convert to fraction form
    61,948.60/85,489.17 = 33,654.31/x
  3. Step 3: Cross multiply
    61,948.60x = 85,489.17 × 33,654.31
  4. Step 4: Simplify right side
    61,948.60x = 2,877,079,028.82
  5. Step 5: Solve for x
    x = 2,877,079,028.82/61,948.60
  6. Step 6: Final answer
    x = 46,443.00

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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.