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Finding the Fourth Proportional to 7,173.03, 10,739.59 and 3,655.46

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Solution

The fourth proportional to 7,173.03, 10,739.59 and 3,655.46 is: 5,473.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,173.03 : 10,739.59 = 3,655.46 : x
  2. Step 2: Convert to fraction form
    7,173.03/10,739.59 = 3,655.46/x
  3. Step 3: Cross multiply
    7,173.03x = 10,739.59 × 3,655.46
  4. Step 4: Simplify right side
    7,173.03x = 39,258,087.96
  5. Step 5: Solve for x
    x = 39,258,087.96/7,173.03
  6. Step 6: Final answer
    x = 5,473.01

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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.