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Finding the Fourth Proportional to 5,412.39, 7,472.25 and 3,736.23

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Solution

The fourth proportional to 5,412.39, 7,472.25 and 3,736.23 is: 5,158.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.39 : 7,472.25 = 3,736.23 : x
  2. Step 2: Convert to fraction form
    5,412.39/7,472.25 = 3,736.23/x
  3. Step 3: Cross multiply
    5,412.39x = 7,472.25 × 3,736.23
  4. Step 4: Simplify right side
    5,412.39x = 27,918,044.62
  5. Step 5: Solve for x
    x = 27,918,044.62/5,412.39
  6. Step 6: Final answer
    x = 5,158.17

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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.