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Finding the Fourth Proportional to 36,971.40, 55,458.90 and 18,013.44

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Solution

The fourth proportional to 36,971.40, 55,458.90 and 18,013.44 is: 27,021.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,971.40 : 55,458.90 = 18,013.44 : x
  2. Step 2: Convert to fraction form
    36,971.40/55,458.90 = 18,013.44/x
  3. Step 3: Cross multiply
    36,971.40x = 55,458.90 × 18,013.44
  4. Step 4: Simplify right side
    36,971.40x = 999,005,567.62
  5. Step 5: Solve for x
    x = 999,005,567.62/36,971.40
  6. Step 6: Final answer
    x = 27,021.04

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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.