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Finding the Fourth Proportional to 7,359.45, 11,043.90 and 4,074.90

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Solution

The fourth proportional to 7,359.45, 11,043.90 and 4,074.90 is: 6,114.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,359.45 : 11,043.90 = 4,074.90 : x
  2. Step 2: Convert to fraction form
    7,359.45/11,043.90 = 4,074.90/x
  3. Step 3: Cross multiply
    7,359.45x = 11,043.90 × 4,074.90
  4. Step 4: Simplify right side
    7,359.45x = 45,002,788.11
  5. Step 5: Solve for x
    x = 45,002,788.11/7,359.45
  6. Step 6: Final answer
    x = 6,114.97

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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.