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Finding the Fourth Proportional to 61,672.59, 85,107.99 and 33,378.21

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Solution

The fourth proportional to 61,672.59, 85,107.99 and 33,378.21 is: 46,061.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,672.59 : 85,107.99 = 33,378.21 : x
  2. Step 2: Convert to fraction form
    61,672.59/85,107.99 = 33,378.21/x
  3. Step 3: Cross multiply
    61,672.59x = 85,107.99 × 33,378.21
  4. Step 4: Simplify right side
    61,672.59x = 2,840,752,362.90
  5. Step 5: Solve for x
    x = 2,840,752,362.90/61,672.59
  6. Step 6: Final answer
    x = 46,061.83

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1.5x scale

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.