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Finding the Fourth Proportional to 8,735.44, 13,119.90 and 7,488.85

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Solution

The fourth proportional to 8,735.44, 13,119.90 and 7,488.85 is: 11,247.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,735.44 : 13,119.90 = 7,488.85 : x
  2. Step 2: Convert to fraction form
    8,735.44/13,119.90 = 7,488.85/x
  3. Step 3: Cross multiply
    8,735.44x = 13,119.90 × 7,488.85
  4. Step 4: Simplify right side
    8,735.44x = 98,252,963.12
  5. Step 5: Solve for x
    x = 98,252,963.12/8,735.44
  6. Step 6: Final answer
    x = 11,247.63

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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.