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Finding the Fourth Proportional to 65,694.36, 90,650.88 and 37,015.32

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Solution

The fourth proportional to 65,694.36, 90,650.88 and 37,015.32 is: 51,077.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,694.36 : 90,650.88 = 37,015.32 : x
  2. Step 2: Convert to fraction form
    65,694.36/90,650.88 = 37,015.32/x
  3. Step 3: Cross multiply
    65,694.36x = 90,650.88 × 37,015.32
  4. Step 4: Simplify right side
    65,694.36x = 3,355,471,331.48
  5. Step 5: Solve for x
    x = 3,355,471,331.48/65,694.36
  6. Step 6: Final answer
    x = 51,077.01

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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.