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Finding the Fourth Proportional to 7,390.28, 11,098.62 and 7,092.98

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Solution

The fourth proportional to 7,390.28, 11,098.62 and 7,092.98 is: 10,652.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.28 : 11,098.62 = 7,092.98 : x
  2. Step 2: Convert to fraction form
    7,390.28/11,098.62 = 7,092.98/x
  3. Step 3: Cross multiply
    7,390.28x = 11,098.62 × 7,092.98
  4. Step 4: Simplify right side
    7,390.28x = 78,722,317.43
  5. Step 5: Solve for x
    x = 78,722,317.43/7,390.28
  6. Step 6: Final answer
    x = 10,652.15

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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.