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Finding the Fourth Proportional to 68,609.44, 94,683.52 and 38,394.56

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Solution

The fourth proportional to 68,609.44, 94,683.52 and 38,394.56 is: 52,985.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,609.44 : 94,683.52 = 38,394.56 : x
  2. Step 2: Convert to fraction form
    68,609.44/94,683.52 = 38,394.56/x
  3. Step 3: Cross multiply
    68,609.44x = 94,683.52 × 38,394.56
  4. Step 4: Simplify right side
    68,609.44x = 3,635,332,089.65
  5. Step 5: Solve for x
    x = 3,635,332,089.65/68,609.44
  6. Step 6: Final answer
    x = 52,985.89

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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.