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Finding the Fourth Proportional to 37,874.56, 52,266.88 and 20,879.08

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Solution

The fourth proportional to 37,874.56, 52,266.88 and 20,879.08 is: 28,813.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,874.56 : 52,266.88 = 20,879.08 : x
  2. Step 2: Convert to fraction form
    37,874.56/52,266.88 = 20,879.08/x
  3. Step 3: Cross multiply
    37,874.56x = 52,266.88 × 20,879.08
  4. Step 4: Simplify right side
    37,874.56x = 1,091,284,368.87
  5. Step 5: Solve for x
    x = 1,091,284,368.87/37,874.56
  6. Step 6: Final answer
    x = 28,813.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.