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Finding the Fourth Proportional to 8,365.56, 11,539.72 and 7,373.28

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Solution

The fourth proportional to 8,365.56, 11,539.72 and 7,373.28 is: 10,170.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,365.56 : 11,539.72 = 7,373.28 : x
  2. Step 2: Convert to fraction form
    8,365.56/11,539.72 = 7,373.28/x
  3. Step 3: Cross multiply
    8,365.56x = 11,539.72 × 7,373.28
  4. Step 4: Simplify right side
    8,365.56x = 85,085,586.68
  5. Step 5: Solve for x
    x = 85,085,586.68/8,365.56
  6. Step 6: Final answer
    x = 10,170.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.