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Finding the Fourth Proportional to 5,270.76, 7,905.86 and 2,673.63

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Solution

The fourth proportional to 5,270.76, 7,905.86 and 2,673.63 is: 4,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.76 : 7,905.86 = 2,673.63 : x
  2. Step 2: Convert to fraction form
    5,270.76/7,905.86 = 2,673.63/x
  3. Step 3: Cross multiply
    5,270.76x = 7,905.86 × 2,673.63
  4. Step 4: Simplify right side
    5,270.76x = 21,137,331.10
  5. Step 5: Solve for x
    x = 21,137,331.10/5,270.76
  6. Step 6: Final answer
    x = 4,010.30

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1.5x scale

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.