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Finding the Fourth Proportional to 7,213.44, 9,953.64 and 4,069.08

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Solution

The fourth proportional to 7,213.44, 9,953.64 and 4,069.08 is: 5,614.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.44 : 9,953.64 = 4,069.08 : x
  2. Step 2: Convert to fraction form
    7,213.44/9,953.64 = 4,069.08/x
  3. Step 3: Cross multiply
    7,213.44x = 9,953.64 × 4,069.08
  4. Step 4: Simplify right side
    7,213.44x = 40,502,157.45
  5. Step 5: Solve for x
    x = 40,502,157.45/7,213.44
  6. Step 6: Final answer
    x = 5,614.82

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