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Finding the Fourth Proportional to 67,361.42, 92,979.16 and 39,074.06

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Solution

The fourth proportional to 67,361.42, 92,979.16 and 39,074.06 is: 53,934.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,361.42 : 92,979.16 = 39,074.06 : x
  2. Step 2: Convert to fraction form
    67,361.42/92,979.16 = 39,074.06/x
  3. Step 3: Cross multiply
    67,361.42x = 92,979.16 × 39,074.06
  4. Step 4: Simplify right side
    67,361.42x = 3,633,073,276.59
  5. Step 5: Solve for x
    x = 3,633,073,276.59/67,361.42
  6. Step 6: Final answer
    x = 53,934.04

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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.