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Finding the Fourth Proportional to 5,473.78, 7,553.39 and 3,083.63

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Solution

The fourth proportional to 5,473.78, 7,553.39 and 3,083.63 is: 4,255.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,473.78 : 7,553.39 = 3,083.63 : x
  2. Step 2: Convert to fraction form
    5,473.78/7,553.39 = 3,083.63/x
  3. Step 3: Cross multiply
    5,473.78x = 7,553.39 × 3,083.63
  4. Step 4: Simplify right side
    5,473.78x = 23,291,824.17
  5. Step 5: Solve for x
    x = 23,291,824.17/5,473.78
  6. Step 6: Final answer
    x = 4,255.16

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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.