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Finding the Fourth Proportional to 3,694.48, 5,098.80 and 2,101.48

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Solution

The fourth proportional to 3,694.48, 5,098.80 and 2,101.48 is: 2,900.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,694.48 : 5,098.80 = 2,101.48 : x
  2. Step 2: Convert to fraction form
    3,694.48/5,098.80 = 2,101.48/x
  3. Step 3: Cross multiply
    3,694.48x = 5,098.80 × 2,101.48
  4. Step 4: Simplify right side
    3,694.48x = 10,715,026.22
  5. Step 5: Solve for x
    x = 10,715,026.22/3,694.48
  6. Step 6: Final answer
    x = 2,900.28

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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.