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Finding the Fourth Proportional to 7,203.60, 10,805.10 and 2,276.78

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Solution

The fourth proportional to 7,203.60, 10,805.10 and 2,276.78 is: 3,415.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.60 : 10,805.10 = 2,276.78 : x
  2. Step 2: Convert to fraction form
    7,203.60/10,805.10 = 2,276.78/x
  3. Step 3: Cross multiply
    7,203.60x = 10,805.10 × 2,276.78
  4. Step 4: Simplify right side
    7,203.60x = 24,600,835.58
  5. Step 5: Solve for x
    x = 24,600,835.58/7,203.60
  6. Step 6: Final answer
    x = 3,415.08

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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.