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Finding the Fourth Proportional to 61,918.42, 85,446.66 and 33,624.31

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Solution

The fourth proportional to 61,918.42, 85,446.66 and 33,624.31 is: 46,401.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,918.42 : 85,446.66 = 33,624.31 : x
  2. Step 2: Convert to fraction form
    61,918.42/85,446.66 = 33,624.31/x
  3. Step 3: Cross multiply
    61,918.42x = 85,446.66 × 33,624.31
  4. Step 4: Simplify right side
    61,918.42x = 2,873,084,557.07
  5. Step 5: Solve for x
    x = 2,873,084,557.07/61,918.42
  6. Step 6: Final answer
    x = 46,401.13

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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.