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Finding the Fourth Proportional to 65,260.32, 90,058.20 and 36,579.96

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Solution

The fourth proportional to 65,260.32, 90,058.20 and 36,579.96 is: 50,479.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,260.32 : 90,058.20 = 36,579.96 : x
  2. Step 2: Convert to fraction form
    65,260.32/90,058.20 = 36,579.96/x
  3. Step 3: Cross multiply
    65,260.32x = 90,058.20 × 36,579.96
  4. Step 4: Simplify right side
    65,260.32x = 3,294,325,353.67
  5. Step 5: Solve for x
    x = 3,294,325,353.67/65,260.32
  6. Step 6: Final answer
    x = 50,479.76

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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.