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Finding the Fourth Proportional to 3,313.38, 4,573.07 and 1,916.13

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Solution

The fourth proportional to 3,313.38, 4,573.07 and 1,916.13 is: 2,644.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.38 : 4,573.07 = 1,916.13 : x
  2. Step 2: Convert to fraction form
    3,313.38/4,573.07 = 1,916.13/x
  3. Step 3: Cross multiply
    3,313.38x = 4,573.07 × 1,916.13
  4. Step 4: Simplify right side
    3,313.38x = 8,762,596.62
  5. Step 5: Solve for x
    x = 8,762,596.62/3,313.38
  6. Step 6: Final answer
    x = 2,644.61

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Half scale
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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.