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Finding the Fourth Proportional to 36,847.80, 55,258.20 and 11,894.40

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Solution

The fourth proportional to 36,847.80, 55,258.20 and 11,894.40 is: 17,837.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,847.80 : 55,258.20 = 11,894.40 : x
  2. Step 2: Convert to fraction form
    36,847.80/55,258.20 = 11,894.40/x
  3. Step 3: Cross multiply
    36,847.80x = 55,258.20 × 11,894.40
  4. Step 4: Simplify right side
    36,847.80x = 657,263,134.08
  5. Step 5: Solve for x
    x = 657,263,134.08/36,847.80
  6. Step 6: Final answer
    x = 17,837.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.