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Finding the Fourth Proportional to 5,003.76, 6,905.21 and 2,765.63

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Solution

The fourth proportional to 5,003.76, 6,905.21 and 2,765.63 is: 3,816.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,003.76 : 6,905.21 = 2,765.63 : x
  2. Step 2: Convert to fraction form
    5,003.76/6,905.21 = 2,765.63/x
  3. Step 3: Cross multiply
    5,003.76x = 6,905.21 × 2,765.63
  4. Step 4: Simplify right side
    5,003.76x = 19,097,255.93
  5. Step 5: Solve for x
    x = 19,097,255.93/5,003.76
  6. Step 6: Final answer
    x = 3,816.58

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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.