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Finding the Fourth Proportional to 73,083.66, 100,855.08 and 39,549.66

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Solution

The fourth proportional to 73,083.66, 100,855.08 and 39,549.66 is: 54,578.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,083.66 : 100,855.08 = 39,549.66 : x
  2. Step 2: Convert to fraction form
    73,083.66/100,855.08 = 39,549.66/x
  3. Step 3: Cross multiply
    73,083.66x = 100,855.08 × 39,549.66
  4. Step 4: Simplify right side
    73,083.66x = 3,988,784,123.27
  5. Step 5: Solve for x
    x = 3,988,784,123.27/73,083.66
  6. Step 6: Final answer
    x = 54,578.33

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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.