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Finding the Fourth Proportional to 36,908.60, 55,368.30 and 11,944.40

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Solution

The fourth proportional to 36,908.60, 55,368.30 and 11,944.40 is: 17,918.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,908.60 : 55,368.30 = 11,944.40 : x
  2. Step 2: Convert to fraction form
    36,908.60/55,368.30 = 11,944.40/x
  3. Step 3: Cross multiply
    36,908.60x = 55,368.30 × 11,944.40
  4. Step 4: Simplify right side
    36,908.60x = 661,341,122.52
  5. Step 5: Solve for x
    x = 661,341,122.52/36,908.60
  6. Step 6: Final answer
    x = 17,918.35

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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.