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Finding the Fourth Proportional to 7,293.70, 10,933.35 and 2,905.30

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Solution

The fourth proportional to 7,293.70, 10,933.35 and 2,905.30 is: 4,355.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,293.70 : 10,933.35 = 2,905.30 : x
  2. Step 2: Convert to fraction form
    7,293.70/10,933.35 = 2,905.30/x
  3. Step 3: Cross multiply
    7,293.70x = 10,933.35 × 2,905.30
  4. Step 4: Simplify right side
    7,293.70x = 31,764,661.76
  5. Step 5: Solve for x
    x = 31,764,661.76/7,293.70
  6. Step 6: Final answer
    x = 4,355.08

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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.