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Finding the Fourth Proportional to 4,851.72, 7,279.74 and 1,773

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Solution

The fourth proportional to 4,851.72, 7,279.74 and 1,773 is: 2,660.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,851.72 : 7,279.74 = 1,773 : x
  2. Step 2: Convert to fraction form
    4,851.72/7,279.74 = 1,773/x
  3. Step 3: Cross multiply
    4,851.72x = 7,279.74 × 1,773
  4. Step 4: Simplify right side
    4,851.72x = 12,906,979.02
  5. Step 5: Solve for x
    x = 12,906,979.02/4,851.72
  6. Step 6: Final answer
    x = 2,660.29

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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.