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Finding the Fourth Proportional to 62,072, 85,644.42 and 36,579.40

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Solution

The fourth proportional to 62,072, 85,644.42 and 36,579.40 is: 50,470.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,072 : 85,644.42 = 36,579.40 : x
  2. Step 2: Convert to fraction form
    62,072/85,644.42 = 36,579.40/x
  3. Step 3: Cross multiply
    62,072x = 85,644.42 × 36,579.40
  4. Step 4: Simplify right side
    62,072x = 3,132,821,496.95
  5. Step 5: Solve for x
    x = 3,132,821,496.95/62,072
  6. Step 6: Final answer
    x = 50,470.77

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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.