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Finding the Fourth Proportional to 73,083.84, 100,855.80 and 39,549.84

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Solution

The fourth proportional to 73,083.84, 100,855.80 and 39,549.84 is: 54,578.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,083.84 : 100,855.80 = 39,549.84 : x
  2. Step 2: Convert to fraction form
    73,083.84/100,855.80 = 39,549.84/x
  3. Step 3: Cross multiply
    73,083.84x = 100,855.80 × 39,549.84
  4. Step 4: Simplify right side
    73,083.84x = 3,988,830,753.07
  5. Step 5: Solve for x
    x = 3,988,830,753.07/73,083.84
  6. Step 6: Final answer
    x = 54,578.83

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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.