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Finding the Fourth Proportional to 61,664.25, 85,065.31 and 37,458.79

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Solution

The fourth proportional to 61,664.25, 85,065.31 and 37,458.79 is: 51,674.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,664.25 : 85,065.31 = 37,458.79 : x
  2. Step 2: Convert to fraction form
    61,664.25/85,065.31 = 37,458.79/x
  3. Step 3: Cross multiply
    61,664.25x = 85,065.31 × 37,458.79
  4. Step 4: Simplify right side
    61,664.25x = 3,186,443,207.03
  5. Step 5: Solve for x
    x = 3,186,443,207.03/61,664.25
  6. Step 6: Final answer
    x = 51,674.07

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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.