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Finding the Fourth Proportional to 36,966.78, 55,458.90 and 12,006.90

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Solution

The fourth proportional to 36,966.78, 55,458.90 and 12,006.90 is: 18,013.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,966.78 : 55,458.90 = 12,006.90 : x
  2. Step 2: Convert to fraction form
    36,966.78/55,458.90 = 12,006.90/x
  3. Step 3: Cross multiply
    36,966.78x = 55,458.90 × 12,006.90
  4. Step 4: Simplify right side
    36,966.78x = 665,889,466.41
  5. Step 5: Solve for x
    x = 665,889,466.41/36,966.78
  6. Step 6: Final answer
    x = 18,013.19

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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.