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Finding the Fourth Proportional to 3,437.70, 4,744.12 and 1,945.64

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Solution

The fourth proportional to 3,437.70, 4,744.12 and 1,945.64 is: 2,685.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,437.70 : 4,744.12 = 1,945.64 : x
  2. Step 2: Convert to fraction form
    3,437.70/4,744.12 = 1,945.64/x
  3. Step 3: Cross multiply
    3,437.70x = 4,744.12 × 1,945.64
  4. Step 4: Simplify right side
    3,437.70x = 9,230,349.64
  5. Step 5: Solve for x
    x = 9,230,349.64/3,437.70
  6. Step 6: Final answer
    x = 2,685.04

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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.