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Finding the Fourth Proportional to 6,696.81, 9,241.50 and 3,712.65

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Solution

The fourth proportional to 6,696.81, 9,241.50 and 3,712.65 is: 5,123.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,696.81 : 9,241.50 = 3,712.65 : x
  2. Step 2: Convert to fraction form
    6,696.81/9,241.50 = 3,712.65/x
  3. Step 3: Cross multiply
    6,696.81x = 9,241.50 × 3,712.65
  4. Step 4: Simplify right side
    6,696.81x = 34,310,454.98
  5. Step 5: Solve for x
    x = 34,310,454.98/6,696.81
  6. Step 6: Final answer
    x = 5,123.40

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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.