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Finding the Fourth Proportional to 65,288.52, 90,094.32 and 36,993.60

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Solution

The fourth proportional to 65,288.52, 90,094.32 and 36,993.60 is: 51,048.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,288.52 : 90,094.32 = 36,993.60 : x
  2. Step 2: Convert to fraction form
    65,288.52/90,094.32 = 36,993.60/x
  3. Step 3: Cross multiply
    65,288.52x = 90,094.32 × 36,993.60
  4. Step 4: Simplify right side
    65,288.52x = 3,332,913,236.35
  5. Step 5: Solve for x
    x = 3,332,913,236.35/65,288.52
  6. Step 6: Final answer
    x = 51,048.99

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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.