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Finding the Fourth Proportional to 68,474.81, 94,485.83 and 38,256.38

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Solution

The fourth proportional to 68,474.81, 94,485.83 and 38,256.38 is: 52,788.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,474.81 : 94,485.83 = 38,256.38 : x
  2. Step 2: Convert to fraction form
    68,474.81/94,485.83 = 38,256.38/x
  3. Step 3: Cross multiply
    68,474.81x = 94,485.83 × 38,256.38
  4. Step 4: Simplify right side
    68,474.81x = 3,614,685,817.10
  5. Step 5: Solve for x
    x = 3,614,685,817.10/68,474.81
  6. Step 6: Final answer
    x = 52,788.55

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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.