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Finding the Fourth Proportional to 3,951, 5,461.02 and 3,553.56

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Solution

The fourth proportional to 3,951, 5,461.02 and 3,553.56 is: 4,911.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951 : 5,461.02 = 3,553.56 : x
  2. Step 2: Convert to fraction form
    3,951/5,461.02 = 3,553.56/x
  3. Step 3: Cross multiply
    3,951x = 5,461.02 × 3,553.56
  4. Step 4: Simplify right side
    3,951x = 19,406,062.23
  5. Step 5: Solve for x
    x = 19,406,062.23/3,951
  6. Step 6: Final answer
    x = 4,911.68

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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.