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Finding the Fourth Proportional to 61,642.31, 85,066.46 and 33,347.99

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Solution

The fourth proportional to 61,642.31, 85,066.46 and 33,347.99 is: 46,020.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,642.31 : 85,066.46 = 33,347.99 : x
  2. Step 2: Convert to fraction form
    61,642.31/85,066.46 = 33,347.99/x
  3. Step 3: Cross multiply
    61,642.31x = 85,066.46 × 33,347.99
  4. Step 4: Simplify right side
    61,642.31x = 2,836,794,865.34
  5. Step 5: Solve for x
    x = 2,836,794,865.34/61,642.31
  6. Step 6: Final answer
    x = 46,020.26

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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.