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Finding the Fourth Proportional to 48,890.20, 73,205.70 and 38,522.20

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Solution

The fourth proportional to 48,890.20, 73,205.70 and 38,522.20 is: 57,681.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,890.20 : 73,205.70 = 38,522.20 : x
  2. Step 2: Convert to fraction form
    48,890.20/73,205.70 = 38,522.20/x
  3. Step 3: Cross multiply
    48,890.20x = 73,205.70 × 38,522.20
  4. Step 4: Simplify right side
    48,890.20x = 2,820,044,616.54
  5. Step 5: Solve for x
    x = 2,820,044,616.54/48,890.20
  6. Step 6: Final answer
    x = 57,681.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.