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Finding the Fourth Proportional to 61,868.42, 85,380.06 and 33,574.12

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Solution

The fourth proportional to 61,868.42, 85,380.06 and 33,574.12 is: 46,333.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,868.42 : 85,380.06 = 33,574.12 : x
  2. Step 2: Convert to fraction form
    61,868.42/85,380.06 = 33,574.12/x
  3. Step 3: Cross multiply
    61,868.42x = 85,380.06 × 33,574.12
  4. Step 4: Simplify right side
    61,868.42x = 2,866,560,380.05
  5. Step 5: Solve for x
    x = 2,866,560,380.05/61,868.42
  6. Step 6: Final answer
    x = 46,333.18

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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.