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Finding the Fourth Proportional to 62,205.40, 85,855.44 and 40,983.40

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Solution

The fourth proportional to 62,205.40, 85,855.44 and 40,983.40 is: 56,564.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,205.40 : 85,855.44 = 40,983.40 : x
  2. Step 2: Convert to fraction form
    62,205.40/85,855.44 = 40,983.40/x
  3. Step 3: Cross multiply
    62,205.40x = 85,855.44 × 40,983.40
  4. Step 4: Simplify right side
    62,205.40x = 3,518,647,839.70
  5. Step 5: Solve for x
    x = 3,518,647,839.70/62,205.40
  6. Step 6: Final answer
    x = 56,564.99

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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.