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Finding the Fourth Proportional to 65,651.70, 90,599.70 and 37,357.38

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Solution

The fourth proportional to 65,651.70, 90,599.70 and 37,357.38 is: 51,553.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,651.70 : 90,599.70 = 37,357.38 : x
  2. Step 2: Convert to fraction form
    65,651.70/90,599.70 = 37,357.38/x
  3. Step 3: Cross multiply
    65,651.70x = 90,599.70 × 37,357.38
  4. Step 4: Simplify right side
    65,651.70x = 3,384,567,420.79
  5. Step 5: Solve for x
    x = 3,384,567,420.79/65,651.70
  6. Step 6: Final answer
    x = 51,553.39

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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.