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Finding the Fourth Proportional to 3,553.43, 4,903.71 and 1,938.35

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Solution

The fourth proportional to 3,553.43, 4,903.71 and 1,938.35 is: 2,674.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.43 : 4,903.71 = 1,938.35 : x
  2. Step 2: Convert to fraction form
    3,553.43/4,903.71 = 1,938.35/x
  3. Step 3: Cross multiply
    3,553.43x = 4,903.71 × 1,938.35
  4. Step 4: Simplify right side
    3,553.43x = 9,505,081.76
  5. Step 5: Solve for x
    x = 9,505,081.76/3,553.43
  6. Step 6: Final answer
    x = 2,674.91

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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.