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Finding the Fourth Proportional to 7,372.36, 11,036.46 and 7,109.80

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Solution

The fourth proportional to 7,372.36, 11,036.46 and 7,109.80 is: 10,643.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,372.36 : 11,036.46 = 7,109.80 : x
  2. Step 2: Convert to fraction form
    7,372.36/11,036.46 = 7,109.80/x
  3. Step 3: Cross multiply
    7,372.36x = 11,036.46 × 7,109.80
  4. Step 4: Simplify right side
    7,372.36x = 78,467,023.31
  5. Step 5: Solve for x
    x = 78,467,023.31/7,372.36
  6. Step 6: Final answer
    x = 10,643.41

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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.