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Finding the Fourth Proportional to 5,398.32, 7,450.23 and 3,383.16

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Solution

The fourth proportional to 5,398.32, 7,450.23 and 3,383.16 is: 4,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.32 : 7,450.23 = 3,383.16 : x
  2. Step 2: Convert to fraction form
    5,398.32/7,450.23 = 3,383.16/x
  3. Step 3: Cross multiply
    5,398.32x = 7,450.23 × 3,383.16
  4. Step 4: Simplify right side
    5,398.32x = 25,205,320.13
  5. Step 5: Solve for x
    x = 25,205,320.13/5,398.32
  6. Step 6: Final answer
    x = 4,669.10

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Double scale
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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.