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Finding the Fourth Proportional to 36,700.98, 55,051.20 and 16,979.64

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Solution

The fourth proportional to 36,700.98, 55,051.20 and 16,979.64 is: 25,469.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,700.98 : 55,051.20 = 16,979.64 : x
  2. Step 2: Convert to fraction form
    36,700.98/55,051.20 = 16,979.64/x
  3. Step 3: Cross multiply
    36,700.98x = 55,051.20 × 16,979.64
  4. Step 4: Simplify right side
    36,700.98x = 934,749,557.57
  5. Step 5: Solve for x
    x = 934,749,557.57/36,700.98
  6. Step 6: Final answer
    x = 25,469.34

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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.