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Finding the Fourth Proportional to 37,219.30, 55,845.15 and 18,751.30

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Solution

The fourth proportional to 37,219.30, 55,845.15 and 18,751.30 is: 28,135.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,219.30 : 55,845.15 = 18,751.30 : x
  2. Step 2: Convert to fraction form
    37,219.30/55,845.15 = 18,751.30/x
  3. Step 3: Cross multiply
    37,219.30x = 55,845.15 × 18,751.30
  4. Step 4: Simplify right side
    37,219.30x = 1,047,169,161.20
  5. Step 5: Solve for x
    x = 1,047,169,161.20/37,219.30
  6. Step 6: Final answer
    x = 28,135.11

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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.