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Finding the Fourth Proportional to 65,662.38, 90,616.35 and 37,367.46

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Solution

The fourth proportional to 65,662.38, 90,616.35 and 37,367.46 is: 51,568.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,662.38 : 90,616.35 = 37,367.46 : x
  2. Step 2: Convert to fraction form
    65,662.38/90,616.35 = 37,367.46/x
  3. Step 3: Cross multiply
    65,662.38x = 90,616.35 × 37,367.46
  4. Step 4: Simplify right side
    65,662.38x = 3,386,102,833.97
  5. Step 5: Solve for x
    x = 3,386,102,833.97/65,662.38
  6. Step 6: Final answer
    x = 51,568.38

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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.