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Finding the Fourth Proportional to 6,641.01, 9,161.15 and 5,383.49

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Solution

The fourth proportional to 6,641.01, 9,161.15 and 5,383.49 is: 7,426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,641.01 : 9,161.15 = 5,383.49 : x
  2. Step 2: Convert to fraction form
    6,641.01/9,161.15 = 5,383.49/x
  3. Step 3: Cross multiply
    6,641.01x = 9,161.15 × 5,383.49
  4. Step 4: Simplify right side
    6,641.01x = 49,318,886.69
  5. Step 5: Solve for x
    x = 49,318,886.69/6,641.01
  6. Step 6: Final answer
    x = 7,426.41

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Double scale
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Similar ratio
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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.